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nacl molar mass

the molar mass of NaCl is 58.45g. How many molecules does a gram of NaCl contain?
36,999 results
chem
the molar mass of NaCl is 58.45g. How many molecules does a gram of NaCl contain?

asked by bekah on October 4, 2014
Chemistry
If 10.0g of CaCl2 and 10.0g of NaCl are dissolved in 100.0mL of solution, what is the concentration of chloride ions? (the molar mass of CaCl2 is 111.0g/mol; the molar mass of NaCl is 58.44g/mol. I found individual molar mass of: Ca-40.08 Cl-35.45 Na-22.99

asked by Casey on July 11, 2010
chemistry
Physicain elects to re-hydrate the patient br intravenous(IV) administration of 2.0 L of 0.45% (w/v) of NaCl. 0.45%9w/v) = 0.45g/100ml A.How many grams of NaCl were given? B.How many moles of Nacl were given? C.What is the molarity of the NaCl solution?

asked by Monica on May 13, 2013
chemistry
If you know that the mass concentration of a NaCl solution is 58.5 g/L, the molar concentration (mol/L) of the solution is ? can sum1 help me plz 1 mol of NaCl has a mass of what? 58.5 g NaCl x (1 mol NaCl/molar mass NaCl) = mols NaCl on 58.5 gg NaCl. Mols

asked by brett on June 13, 2006
Chemistry
A mass of 0.630 g of NaCl is dissolved in 525 g of water. CAlculate the molality. mass of NaCl= 0.630g mass of H20= 525g molar mass of NaCl= 58.44 This is what i did it keeps telling me the answer is wrong. Convert grams to moles of NaCl 0.630 * 1 mol

asked by Saira on May 21, 2009

chemistry
1.what is the volume of NaCl in cubic cm and cubic nm if the Length is 0.563 nm? 2. the density of NaCl is 2.17 g/cm. What is the Mass? 3. Each repeating unit is composed of 4 NaCl molecules. What is the Mass of 1 NaCl molecule?

asked by andi on August 20, 2011
chemistry
Are there formulas to solve the following problem? Complete the following table by replacing question marks with the correct numbers: (Note: Each horizontal row is a separate example, so in row #1, 175.32 grams of NaCl is how many moles of NaCl and how

asked by alma on February 6, 2015
science
Complete the following table by replacing question marks with the correct numbers: (Note: Each horizontal row is a separate example, so in row #1, 175.32 grams of NaCl is how many moles of NaCl and how many molecules of NaCl does it contain?)Grams of NaCl

asked by queen on September 14, 2013
Please help with Physical Science 2!! Confused!
Complete the following table by replacing question marks with the correct numbers: (Note: Each horizontal row is a separate example, so in row #1, 175.32 grams of NaCl is how many moles of NaCl and how many molecules of NaCl does it contain?) Grams NaCl

asked by Ella on February 5, 2013
Chemistry
Determine the number of moles of NaCl in the solution. Measured Mass of NaCl: 11.69g Measured Vol of Water: 100mL Molar Mass of NaCL: 58.44g/mol 11.69gNaCL/58.44g/mol = 0.20 mol NaCl Do I then to multiply my answer by 100ml? 0.20 x 100=20.00mol NaCl?

asked by Rose on March 16, 2017
Chemistry
If there are 0.625 g of NaCl left in a beaker that originally contained 75.0 mL of saltwater, what must have been the molar concentration of the original solution? The molar mass of NaCl is 58.44 g/mol.

asked by Summer on September 11, 2014
Chemistry
I have a certain concentration of NaCl (in mg/L). I have to convert it to ppm Na+. I read some of the previous posts, and I understand that if I don’t know the density, I should assume that 1ppm = 1mg/L. Does this also apply to ppm Na+ since there is 1 Na+

asked by Maggie on February 20, 2007
chemistry
Making the simplistic assumption that the dissolved NaCl(s) does not affect the volume of the solvent water, determine the constants m and b in the equation Molarity = m⋅density + b that relates the NaCl molarity to the NaCl(aq) density. Take the density

asked by Anonymous on May 28, 2013
chemistry
If there are 0.561 g of NaCl left in a beaker that originally contained 75.0 mL of saltwater, what must have been the molar concentration of the original solution? The molar mass of NaCl is 58.44 g/mol. Give your answer to 3 decimal places

asked by Kaylin on September 10, 2014
Chemistry
How would you prepare the ff. solutions: 1. 45g NaCl/g H2O 2. 25% w/v NaCl Thank you in advance.

asked by JamesKim on December 21, 2015

chemm
When a reaction mixture with a total volume of 1180 mL that is 0.0110 M aqueous NaCl was stoichiometrically produced as per the balanced equation, what volume (mL) of 0.0116 M aqueous Ca2+ was required? 3 CaCl2(aq) + 2 Na3PO4(aq) → Ca3(PO4)2(s) + 6

asked by ann on December 7, 2010
Chemistry
If 10.0g of CaCl2 and 10.0g of NaCl are dissolved in 100.0mL of solution, what is the concentration of chloride ions? I found the molar mass of CaCl2 is 111.0g/mol; the molar mass of NaCl is 58.44g/mol. I divided 10g CaCl2/111.0g CaCl2 I divided 10g

asked by Casey on July 12, 2010
To yvonne/GK
Yvonne. Did you type all of the question about osmosis? correctly? I have struggled with it and something about it doesn’t seem right. GK. Doesn’t the NaCl enter the equation? And shouldn’t the mass MgCl2 be less than 0.5000 gram? The total NaCl + MgCl2

asked by DrBob222 on November 30, 2008
physical chemistry
calculate the mass of NaCl needed to prepare 1000cm of 0.025M solution (molar mass of NaCl is 58.5)

asked by Anonymous on November 28, 2015
ap chem
I’m supposed to find the mass of NaCl in 1 L & the mass of H20 in 1 L. I’m given NaCl solution. 1% by mass. The Density is 1.071 g/mL. I know the answer for NaCl is 10.71 g, but I don’t know where to start to get to this. Could you lead me in the right

asked by dylan on February 24, 2011
Physical Science Please Help!
Table salt, sodium chloride, has the formula NaCl. A weight of 58.44 grams of table salt contains 1.0 mole of NaCl molecules. How many moles of NaCl are contained in 29.22 grams of NaCl?

asked by Dawn on February 5, 2013
Scient
(NaCl) solutions used in intravenous injections have a concentration of 0.90% NaCl (mass/volume). 4.5grams of NaCl are needed to prepare 500.0 mL of this solution How much water must evaporate from this solution to give a solution that is 9.0% NaCl

asked by Tina on June 18, 2016
Chemistry
Ammonia has a molar mass of 17.0 Gram molecules hydrogen chloride has a molar mass of 26.5 Gram molecule what is the ratio of their diffusion rates

asked by Als on September 12, 2017
chemistry
In a laboratory experiment, a 18.0 ml sample of NaCl solution is poured into an evaporating dish with a mass of 24.00 g. The combined mass of the evaporating dish and NaCl solution is 37.15g. After heating, the evaporating dish and dry NaCl have a combined

asked by Allyse on October 9, 2010
chemistry
Kc = [Na+][Cl-]/[NaCl(s)] The above equation contains the concentration of NaCl in solid NaCl. This concentration is related to the density of solid NaCl and its molar mass. Since the density of NaCl or of any pure solid or pure liquid does not vary with

asked by jessica on July 21, 2009

Chemistry
what is the mass of two moles of NaCl? You look up the exact numbers on the periodic table or some other chart. I will use approximations. 1 mol NaCl = 1 Na + 1 Cl = 23 + 35.5 = 58.5 grams. 1 mols NaCl, then, is 2 x 58.5 = ?? g.

asked by Dennis on February 5, 2007
Chemistry
A solution is made by dissolving 0.100 mol of NaCl in 5.35 mol of water. What is the mass % of NaCl? So far, I have determined molecular weight of NaCl (58.44 g/mol) multiplied by 0.100 mol = 5.844g NaCl, and mw of H2O (18 g/mol) = 96g H20. I thought mass

asked by Jon on March 26, 2010
Chemistry
A chemist wants to make 500.0 mL of 0.215M NaCl. What mass of NaCl is needed? would it be .500 L x .215 M = .1075 mol NaCl .1075 mol x 58.44g NaCl = 6.28g NaCl needed

asked by Anonymous on September 12, 2016
chakraborty
arrange the following solutions in order of decreasing specific conductance 0.01 M NaCl,0.05 M NaCl,0.1 M NaCl, 0.5 M NaCl

asked by Raja on May 12, 2016
ap
A volume of equimolar strong acid like HCl is mixed with an equal volume of equimolar strong base like NaOH in a beaker of water. What exists after the reaction? 1. mostly water molecules and HCl, NaOH, and NaCl molecules 2. mostly water molecules and Na+

asked by cheri on October 1, 2012
chemistry
A solution contain 20 gram of NaCl in 95 cm3 solution the density of the solution is 1.25 g cm-3 what is the mass percentage of Nacl

asked by Anant on April 29, 2018
Chemistry
A student intend to prepare 200ml of 0.3M NaCl solution . The mass in gram of NaCl needed to prepare solution is ?!

asked by Mariam on April 20, 2014
Chemistry
What is the molarity of the resulting saline solution when you mix 1 mole HCl with 1 mole NaOH? I’ll provide some basic information that I know, but could somebody tell me how to get the answer using the data? The balanced reaction is as follows:

asked by Andrew on March 8, 2008
Chemistry
Product reactions results. Tell if a chemical reaction or physical reaction occurs when mixing these two substances. NaCL+ Distilled water = NaCL+ Vegetable oil= NaCL+ Vinegar= NaCL+ Citric acid= NaCL+ NaOH= I know what happens when a chemical reaction and

asked by somayee on September 21, 2018
Chemistry
The problem states, ‘A student wants to determine how long it takes to dissolve 51.3 g of common table salt (sodium chloride) in 1L of water by monitoring the solution. It takes 26.7 seconds for the salt to completely dissolve. Determine the rate of

asked by SarahF275 on March 5, 2018

bio
You have a sample of NaCl that contains 100 mg/ml NaCl. You are trying to perform an reaction that requires 10ml of 20 mg/ml. Enter in the correct amount (in ml) of Stock NaCl solution you need to use to make 10ml of 20 mg/ml NaCl

asked by mina on March 1, 2011
Chemistry
Hi, can you help with how to solve this equation? 50.0 gram sample of NaCl is added to water to create a 0.50 L solution. What volume of this solution is needed to create a 1.30 L solution that is 0.100 M NaCl? The choices provided: a) 152 mL b) 255 mL c)

asked by Cassandra on April 3, 2015
science
answer to water conductance lab on conductivity of solutionof 500ppm of nacl,1,000 ppm of nacl,5,000ppm og nacl and 10,000ppm of nacl

asked by dkh on July 28, 2011
chemistry
calculate the mass, in grams, of NaCl present in each of the following solutions. 6.25 g of 11.5% NaCl solution 452 g of 12.3% NaCl solution please show me how to do these. Thanks.

asked by pat on April 29, 2011
Chemistry
How many grams of NaCl (molar mass = 58.4 g/mole) must be added to 12.0 g of water (molar mass = 18.0 g/mole) so that Xwater = 0.725? My answer was 102.69 grams of NaCl. However my friend got 14.8 grams of NaCL. We are not sure who is right? Please

asked by Aletha on February 5, 2007
Chemistry
25.0 mL of a NaCl solution (concentration unknown) was found to react with 20 drops of the chloride test solution from the PU Chloride Test Kit. Calculate the mass of NaCl (in grams) in this solution. Calculate the mass of NaCl required to prepare 0.250 L

asked by kt on October 3, 2010
Chemistry 11
Find the percent composition of a compound containing sodium and chlorine if 24.34g of the compound contains 13.45g of sodium. My work: Molar mass of NaCl: MNa +MCl = 22.99 g/mol + 35.45 g/mol = 58.44 g/mol Percent composition of Na: 22.99 g/mol / 58.44

asked by Christina on November 12, 2014
chemistry
Record and calculate the following masses: (a)mass of empty beaker: 47.420g (b)mass of beaker plus Na₂CO₃:47.920g (c)Mass of Na₂CO₃:0.5g (d)mass of beaker plus NaCl:47.438g (e) Mass of NaCl (g):0.018g I need help with these questions below 2.

asked by chelsea on June 7, 2012
science
Q4.you will be asked to prepare 25.0 mL of a 0.019 M solution of sodium chloride during this experiment…. a.calculate mass of sodium chloride needed to prepare solution. (0.25L)(0.019M NaCl/L)*(58.5g NaCl/1mole NaCl)=0.278 g NaCl….is that right?

asked by Ally on September 17, 2009
CHEMESTRY
Which of the following solutions would have the lowest boiling point? A.1.0 M NaCl B.2.0 M NaCl C.3.0 M NaCl D.4.0 M NaCl

asked by SANDRA on November 3, 2011

college chem 2
Calculate the deltaS univ for the dissolving of NaCl at room temp. S’ NaCl(s)=72.11 J/kmol; S’ NaCl(aq)=115.5 J/kmol;deltaH’ NaCl(s)=-411.12 kJ/mol; deltaH’ NaCl(aq)=-407.27 kJ/mol.

asked by shel on March 24, 2014
CHEMISTRY

  1. Not sure of how to do the calculations… Make a 0.200 m solution of NaCl in a 100. mL volumetric flask. … Solution A’s question or statement is the same but with M (molarity) Is this right? The small m means molality. If it were changed to capital M,

asked by Allison on February 3, 2017
Chemistry

  1. Not sure of how to do the calculations… Make a 0.200 m solution of NaCl in a 100. mL volumetric flask. … Solution A’s question or statement is the same but with M (molarity) Is this right? The small m means molality. If it were changed to capital M,

asked by A on February 2, 2017
Chemistry
I had to perform an experiment for the freezing point depression in which we had to determine the freezing points of water as a pure solvent, sodium chloride, sucrose, and ethylene glycol. We had to work with a partner so I completed the experiment for

asked by Hannah on February 19, 2012
Chemistry
A 15.0% (by mass) NaCl solution is available.. Determine what mass of solution should be used to obtain a. 2.50 mole of NaCl b. 25.0 g/mol of NaCl

asked by Tim on December 2, 2010
CHEMISTRY
I used 10mL of unknown NaCl-NaBr mixture titrate with 0.10M silver nitrate solution. 10.15mL of silver nitrate solution is used. the conc. of NaCl-NaBr mixture is 8g/dm3 I need to calculate the % composition of the NaCl-NaBr mixture. I used the following

asked by albee on April 29, 2010
CHEM HELP
what is the theoretical mole ratio- NaCl to NaHCO3 How do you determine the percentage error of an experimental mole ratio It would be easier for us to help you if we had the entire problem instead of just parts of it. However, from the standpoint of Na,

asked by CHEMISTRY HELP on January 2, 2007
Chemistry
An aqueous solution of NaCl is 270m. If the density of the solution is 1.20g/ml. Find a) % NaCl by mass b) Molarity of NaCl in the solution.

asked by Arwida on July 16, 2014
Chemistry
When sodium chloride, NaCl, is added to water, it forms a solution. Rank the steps involved in the dissolution of salt in water from first step to last step. To rank items as equivalent, overlap them. a.) NaCl crystal is added to water b.) NaCl solution

asked by LuigiR on November 14, 2015
Chemistry
Hello this is my first experiment I’ve ever done before and it was fun but I gotta figure out what NaCl produced and what it yielded in percentage. Can someone double check my work. Na2CO3+2HCl=2NaCl+H2O+CO2 Mass of empty crucible & cover: 33.076g Mass of

asked by Henry on November 12, 2017

chemistry
Calculate the molarity of each. a. 1.50 mole of NaCl in 8.00 L of solution 0.188 M NaCl b. 270 mg of NaCl in 3.00 mL of solution 90 M NaCl

asked by krystal on February 22, 2012
chemistry
a solution is made by dissolving 25 g NaCl in enough water to make 1.0 L solution. Assume that density of the solution is 1.0 g/mL. calculate the mass percent, molarity, molality, and mole fraction of NaCl. whats wrong 25 g NaCl 1.0 L solution 1.0 g/mL 25

asked by Kyle on January 5, 2015
Chemistry
will a red blood cell undergo crenation, hemolysis, or no change in each of the following solutions? 1% (m/v) glucose 2% (m/v) NaCl 5% (m/v) NaCl .1% (m/v)NaCl

asked by Curlyqty on May 9, 2011
chemistry
I have two that I can not figure out: #1: calculate the MOLALITY of 10.00 g/L of the salt, if its molar mass is 100.0 g/mol and solution density D=1.100 g/mL work: 10.00 g NaCl x (1mL/1.100g) x (1kg/1000 mL)= 0.00909 kg 100.0 g x (1 mol NaCl/58.4 g Nacl)=

asked by sam on November 21, 2015
Chem
Plese tell me if these are right. A 15.0-mL sample of NaCl solution has a mass of 15.78g. After the NaCl is evaporated to dryness, the dry salt residue has a mass of 3.26g. Calculate the following concentrations for the NaCl solution. a. %(m/m)= 3.26 x 100

asked by Jason on November 7, 2010
Chemistry
You are given a bottle of dry NaCl. Explain the procedures required to make 900mL of a 0.5M NaCl solution. The formula weight of NaCl is 58.4g/mole.

asked by Ana on February 7, 2016
Biology
What happened if you put the Elodea leaf cells in a solution of 0.5% NaCl,1.8% NaCl and 0.9%NaCl?

asked by Ivy on July 23, 2011
Chemistry
I need to know how to dilute a 1L IV bag of 0.45% NaCl with 3.5% NaCl water to make it a drinkable 0.9% NaCl

asked by Emma on December 9, 2009
chemistry 2
An experiment calls for 125 mL of 0.105 M NaCl solution. What mass of NaCl is required? What mass of NaCl would be required for 1.00 L of the same solution?

asked by Britany on April 16, 2012
Chemistry
The molar solubility of magnesium chloride in water is 0.23 M. What is the numerical value for Ksp for MgCl2? Suppose you wanted to reduce the concentration of dissolved Mg2+ to 0.00537 M by adding NaCl. What concentration of NaCl would you need?

asked by Lily on April 27, 2016

Math
How would you go about making 250ml of a 20X stock solution of NaCl to dilute later to a final concentration of 50mM? I know that the molecular weight of NaCl is 58.44 but I am not sure where to start. I need to figure out the amount of NaCl and water

asked by Anonymous on March 26, 2013
Math(Please help) Thank you
How would you go about making 250ml of a 20X stock solution of NaCl to dilute later to a final concentration of 50mM? I know that the molecular weight of NaCl is 58.44 but I am not sure where to start. I need to figure out the amount of NaCl and water

asked by Anonymous on March 26, 2013
chemistry
If the water in 500mL of 0.44M NaCl solution is evaporated, what mass of NaCl will remain?

asked by Justin on April 26, 2016
chemistry
Consider the unbalanced equation: Na+Cl2 = NaCl. What mass of NaCl can be produced from 25.0 grams of Chlorine?

asked by Bella on February 10, 2010
chemistry
what mass of Nacl and H2o are present in 160.0g of 12 mass percentage solution of Nacl?

asked by nketo w on February 25, 2011
Intro to Chemistry
How do you determine the mass of NACL needed to prepare 25.00 ml of a 1.585M NaCl Solution?

asked by Jenny on November 19, 2012
chemistry
What mass of NaCl should be found in 0.51 L of a saturated solution of sodium chloride if the Ksp of NaCl is assumed to be 1.5 x 10-5?

asked by Johnathan on May 25, 2008
Chemistry
Naoh (aq) + HCl (aq) –> NaCl (aq) + H2O (l) Using the dT determined in part 1, calculate the heat capacity of the calorimeter. Enthalpy of reaction= -58.3 kj/mol, Cs (NaCl = 3.91j/g C)density of 1 M NaCl = 1.037g/mL. dT= 12.88 degrees Celcius.

asked by Annie on November 12, 2012
Chemistry
How much of a 2.0 molar NaCl solution would you need to make 250 mL of a .15 molar NaCl solution?

asked by Vinny on January 15, 2013
chem
Osmolarity (Osm) is the molar concentration of the particles-molecules and/or ions-in a solution. In physiological solutions, 5 \% ({\rm m/v}) glucose ({\rm C}{6}{\rm H}{12}{\rm O}_{6}) and 0.9 \% ({\rm m/v}) {\rm NaCl}, the osmolarity must be the same

asked by Anonymous100 on April 11, 2011

chem
Osmolarity (Osm) is the molar concentration of the particles-molecules and/or ions-in a solution. In physiological solutions, 5 \% ({\rm m/v}) glucose ({\rm C}{6}{\rm H}{12}{\rm O}_{6}) and 0.9 \% ({\rm m/v}) {\rm NaCl}, the osmolarity must be the same

asked by Anonymous777 on April 11, 2011
Chemistry
What mass of sodium chloride, NaCl, is needed to make 369. g of a 3.04%(m/m) NaCl solution? (atomic masses: Na = 22.99, Cl = 35.45)

asked by Abby on November 3, 2014
science
If 20g of sodium chloride is dissolved in 100 cm3 of water at 20c is the solution saturated? I looked up the solubility of NaCl in my copy of The Merck Index and it is listed as 1 gram NaCl dissolving in 2.8 mL water at 25 degrees C. Converting that means

asked by Anonymous on January 22, 2007
Chemistry
What is the mass in grams of 1.02X10^24 molecules of NaCl?

asked by J on March 11, 2008
Chemistry
1.2g of NaCl as used to prepare 200 ml solution , what is the molar concentration of NaCl in solution ?

asked by Mariam on April 20, 2014
Chemistry
Express 2.5M NaCl as a percent solution. what is the molar concentration of a 10% NaCl solution?

asked by confuzzled on September 18, 2011
Chemistry
Calculate the mass percent of a NaCl solution in which 158g of NaCl is dissolved in 3.81L of water at 25 ∘C (density = 0.997 g/mL).

asked by Alicia Estrada on June 16, 2015
Chemistry
What mass (in grams) of sodium chloride, NaCl, is needed to make 422. g of a 3.39%(m/m) NaCl solution? (atomic masses: Na = 22.99, Cl = 35.45)

asked by Brittany on November 7, 2014
Chemistry
A certain brine has 3.96% NaCl by mass. A 75.0−mL sample weighs 76.7g How many liters of this solution should be evaporated to dryness to obtain 730kg NaCl?

asked by Bella on September 21, 2014
Chemistry
A sample of a mixture containing only sodium chloride (NaCl) and potassium chloride (KCl) has a total mass of 4.000g. When this sample is dissolved in water and excess silver nitrate is added a white precipitate (AgCl) forms. After filtration and drying,

asked by Steve on January 26, 2007

Chemistry
To a mixture of NaCl and Na2CO3 with a mass of 1.300 g was added 55.00 mL of 0.243 M HCl (an excess of HCl). The mixture was warmed to expel all of the CO2 and then the unreacted HCl was titrated with 0.100 M NaOH. The titration required 7.40 mL of the

asked by Gabe on December 1, 2014
chemistry
1.Name the type of solution 45g of NaCl in 100g of water at 80 degree celcius. 2. 39g of NaCl in 100g of water at 80 degree celcius

asked by karthik on November 6, 2016
Chemistry
How would you prepare 50.00 mL of 0.25 Molar NaCl from 2.00 Molar NaCl?

asked by Lorraine on April 18, 2012
SCIENCE
Calculate the mass % of nacl in a solution containing 1.5g of nacl in 50.0g of water

asked by YIRA on November 22, 2016
Chem
what mass of NaCl is contained in 24.88g of a 15% by mass solution of NaCl in water?

asked by Anonymous on October 13, 2014
chemisrty
Q4) Suppose you prepare 950 mL of a solution by dissolving 100 grams of NaCl in 900 mL of water. Assuming the density of pure water to be 1 g/mL, answer the following questions with regards to this solution: a) What is the mass percent of water in this

asked by lyan on January 16, 2012
Chemistry
I am doing a lab online and have no clue on how to get started with the following questions? Please Help me! 1. Calculate and record the following (in grams): (a) mass of NaCl by subtraction of other components: (b) measured mass of NaCl after boiling away

asked by Melissa on October 23, 2010
chemistry
From each pair of substances below, choose the one with the higher molar So, at 298 K a) Hg (s), Hg (l) d) C2H6 (g), C2H4 (g) b) HI (g), HCl (g) e) H2 (1 atm), H2 (2 atm), 1 mol at 298 K c) NH3 (g), Ne (g) f) NaCl(s), NaCl (aq)

asked by Jaline on January 29, 2017
Chemistry
How does table salt (NaCl) dissolve in water? A. The oxygen atoms in water molecules attract sodium ions. B. Each sodium ion is surrounded by chloride ions. C. Each NaCl molecule is surrounded by water molecules. D. Water molecules hydrogen bond with

asked by Cortney on March 18, 2015
Chemistry
please explain how % error and % yield would have effected the mass/moles of a substance in a reaction in a lab. In this case mass/moles of NaCl. NaHCO3+ HCl–> NaCl + CO2 + H2O

asked by john on December 10, 2012

chemistry
A 15.0ml sample of NaCL solution has a mass of 15.78g.after the NaCL solution is evaporated to dryness, the dry salt residue has a mass of 3.26g. calculate the following concentrations for the %(m/m), % (m/v), molarity (M)

asked by jack on November 1, 2012
chemistry
a mixture of NaCl and sucrose that has a combined mass of 10.20g is dissolved in enough water to make up to a 250mL solution. osmotic presdure of solution is 7.32atm at 23℃. calculate the mass percent of NaCl

asked by susan on February 25, 2015
Chem
1) Which solution will have the lowest OH- A) Na2CO3 B) NaHCO3 C) NaCl D) NaHSO4 E) NH4Cl 2) Which solution will be the strongest base? A) Na2CO3 B) NaHCO3 C) NaCl D) NaHSO4 E) NH4Cl 3) Which aqueous solutions are acidic? A) Na2CO3 and NaHCO3 B) NaCl and

asked by Timothy on April 5, 2014
chemistry
How does table salt (NaCl) dissolve in water? A. Water molecules hydrogen bond with sodium ions and chloride ions. B. Each sodium ion is surrounded by chloride ions. C. Each NaCl molecule is surrounded by water molecules. D. The oxygen atoms in water

asked by erika on September 14, 2016
Chemistry 314
What NaCl concentration results when 254 mL of an 0.880 M NaCl solution is mixed with 412 mL of a 0.450 M NaCl solution?

asked by Amanda on August 26, 2012

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