Home / paper help / do my paper / Chemistry Work

Chemistry Work

Question No: 1

Name CH4 CH6 HCN HCO
Melting Point -182 -183 -13.4 90
Forces of attraction Vander Waal forces London dispersion force Dipole-dipole interaction Hydrogen bonding

Highest melting points:

HCO >HCN >CH4 >C2H6

Forces of attraction:

HCO > HCN > C2 H6 > CH4

Question no 2

Range of Viscosity:

CH3 < CH 4OH < CH3OCH3 <C2H6

Question No: 3

Reaction of ammonia with water gives NH4 and OH molecules.

                                                                     NH3 + H2O                                 NH4 + OH

Question No: 4

a)

N2O5(g) + H2O(l)                    2HNO3(aq)

b)

CH4 + 4Cl                            CCl4 + 4 HCl

Question No: 5

Molar mass of ethanol = 46.07g/mole

Total mass of ethanol = 225g

Moles of ethanol is =?

Molar mass =

=

=

=4.88mol

Question No: 6

Avogadro number = 6.022×10^23

Moles of ethanol = 2.0

Atoms of hydrogen =?

1 mole of C2H5OH contain 6.02 X 10^23 molecules 
1 molecule of ethanol contains 6 hydrogen atoms 
1mol of ethanol contains 6.02 X 10^23 x 6 hydrogen atoms 
2 moles of ethanol contain 6.02 X 10^23 x 6 x 2 hydrogen atoms 
= 7.224 x 10^24

About eduhawks

Check Also

Buoyancy homework

Question 1: In which I have to find out the bouncy force and in which …