Chemistry
A gas cylinder of capacity of 20 dm3 is filled with gas X the mass of which is 10 g. When the same cylinder is filled with hydrogen gas at the same temperature and pressure the mass of the hydrogen is 2 g, hence the relative molecular mass of the gas is :
- 5
- 10
- 15
- 20
Related Questions
State the term defined by: The mass of a given volume of gas compared to the mass of an equal volume of H2.
2KMnO4 ⟶ K2MnO4 + MnO2 + O2
K2MnO4 + MnO2 is the solid residue.
Potassium permanganate was heated in a test tube. After collecting one litre of oxygen at room temperature, it was found that the test tube had undergone a loss in mass of 1.32 g. If one litre of H2 under the same conditions of temperature and pressure has a mass of 0.0825 g. Calculate the relative molecular mass of oxygen.
The vapour density of carbon dioxide [C = 12, O = 16] is
- 32
- 16
- 44
- 22
Give one word or phrase for : The ratio of the mass of a certain volume of gas to the mass of an equal volume of hydrogen under the same conditions of temperature and pressure.