Advertisements
Advertisements
प्रश्न
A gas cylinder can hold 1 kg of hydrogen at room temperature and pressure. What mass of carbon dioxide can it hold under similar conditions of temperature and pressure?
Advertisements
उत्तर
Let the volume of the cylinder = V
Vapour density of hydrogen (2) = `"Molecular mass"/2`
= `2/2`
= 1
Vapour density of carbon dioxide (CO2) = `"Molecular mass"/2`
= `44/2`
= 22
Mass of hydrogen in the cylinder (or volume v) = 1 kg
Let the mass of the carbon dioxide in the cylinder (of volume v) at the same temperature and pressure = m kg
Now,
Vapour density of CO2 = `"Mass of certain volume (v) of CO"_2/"Mass of same volume (v) of hydrogen at the same temperature and pressure"`
∴ 22 = `"m"/1`
or, m = 22 kg
APPEARS IN
संबंधित प्रश्न
Empirical formula of a compound is CH2O. If its empirical formula is equal to its vapour density, calculate the molecular formula of the compound.
Potassium nitrate on strong heating decomposes as under :
2KNO3 → 2KNO2 + O2
Calculate : Weight of potassium nitrite formed.
(K = 39, 0 = 16, N = 14)
Samples of the gases O2, N2, CO2 and CO under the same conditions of temperature and pressure contain the same number of molecules represented by X. The molecules of Oxygen, occupy V litres and have a mass of 8 g. Under the same conditions of temperature and pressure :
What is the mass of CO2 in g?
A flask contains 3.2g of sulphur dioxide. Calculate the following: The number of molecules of sulphur dioxide present in the flask.
The reaction of potassium permanganate (VII) with acidified iron (II) sulphate is given below:
2KMno4 + 10FeSO4 + 8H2O → K2SO4 + 2MnSO4 + 5Fe2(SO4)3 + 8H2O
If 15.8g of potassium permanganate (VII) was used in the reaction, calculate the mass of iron (II) sulphate used in the above reaction.
A gaseous hydrocarbon contains 82.76% of carbon. Given that its vapour density is 29, find its molecular formula.
[C = 12, H = 1]
Calculate the relative molecular mass of:
Ammonium chloroplatinate (NH4)2 PtCl6
Calculate the relative molecular mass of:
Potassium chlorate
If a crop of wheat removes 20 kg of nitrogen per hectare of soil, what mass of the fertilizer, calcium nitrate Ca(NO3)2 would be required to replace the nitrogen in a 10 hectare field?
The vapour density of CH3OH is ______. (At. Wt. C = 12, H = 1, O = 16)
