Advertisements
Advertisements
Question
What is the value of molar volume of a gas at S.T.P?
Advertisements
Solution
The molar volume of a gas is the volume occupied by one gram-molecular mass or simply, by one mole of the gas at S.T.P.
Molar volume = `("Gram molecular mass of gas")/("Density of gas at STP")`
= 22.4 dm3 at STP
∴ The molar volume of a gas at STP is 22.4 dm3.
APPEARS IN
RELATED QUESTIONS
If one mole of carbon atoms weighs 12 gram, what is the mass (in gram) of 1 atom of carbon?
Convert into mole.
12 g of oxygen gas
Choose the correct answer from the options given below:
The ratio between the number of molecules in 2g of hydrogen and 32g of oxygen is:
[Given that H = 1, O = 16]
One of the following elements has an atomicity of ‘one’. This element is :
Fill in the following blanks :
A mole represents an .............. number of particles of a substance.
How many moles of O2 are there in 1.20 × 1022 oxygen molecules ?
The molecular formula for elemental sulphur is S8. In a sample of 5.12 g of sulphur:
How many moles of sulphur are present?
Solid ammonium dichromate decomposes as:
\[\ce{(NH4)2Cr2O7 -> N2 + Cr2O3 + 4H2O}\]
If 63 g of ammonium dichromate decomposes. Calculate the quantity in moles of (NH4)2Cr2O7.
N2 + 3H2 → 2NH3
(The atomic mass of nitrogen is 14, and that of hydrogen is 1)
1 mole of nitrogen (______ g) +
3 moles of hydrogen (______ g) →
2 moles of ammonia (______ g)
If 0.2 mol of the following substance is required how many grams of that substance should be taken?
magnesium oxide
