Gas is one of the four fundamental states of matter. A pure gas may be made up of individual atoms, elemental molecules made from one type of atom, or compound molecules made from a variety of atoms. A gas mixture, such as air, contains a variety of pure gases. Improve your Chemistry Knowledge in this Gases Quiz!
1 dm3
0.1 dm3
0.01 dm3
10 dm3
Hydrogen
Oxygen
Water
Both are used Completely
24g
48g
72g
96g
CaCO3
CH3CHO
CH3COOH
CaC2
37 amu Cl
100 amu Ca
35.5 amu Cl
96 amu S
1 : 2 : 8
1: 1: 1
1 : 8 : 2
8 : 2 : 1
18.02 amu
19.04 amu
20.03 amu
22.04 amu
0.5 NA
2NA
1 NA
3NA
C3H8
C3H7CO2H
C3H7OH
CH3COOCH3
22400cm3
2240 cm3
1120 cm3
120 cm3
32 g
16 g
8 g
4 g
6.02×1023 molecules of H2
22.4 dm3 of He
0.25 mole of Ne
10g of Ca
H2SO4
H3BO3
H3PO4
CH3COOH
12.5 g
25 g
50 g
100 g
9.1 × 10–31 kg
1.602 × 10–19 kg
0.55 mg
0.55g
6 × NA
3 × NA
1.5 × NA
0.25 × NA
22.4dm3
5.6 dm3
11.2 dm3
2.8 dm3
120 g
100 g
80 g
40 g
Mass Number
Number of Electrons
Number of protons
Number of neutrons
80 cm3
40 cm3
20 cm3
10 cm3
1mole of nascent hydrogen
2 mole of H+ ions
1 mole of oxygen gas
½ mole of oxygen gas
NA
Molar volume
Molar mass
All of these
All reactants are converted into products
No side reaction occurs
Law of conservation of mass and law of definite proportion are obeyed
Reactions may be reversible
32g of O2
4.0g He
24g of CH4
4g of H2
20 NA
2 NA
10 NA
5 NA