Advertisements
Advertisements
Question
What is the value of molar volume of a gas at S.T.P?
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
Convert into mole.
12 g of oxygen gas
Fill in the following blanks :
64 g of oxygen gas contains ................ moles of oxygen atoms.
How many moles of O2 are there in 1.20 × 1022 oxygen molecules ?
Calculate the mass in grams of 0.17 mole of hydrogen sulphide, H2S. (Atomic masses : H = 1 u, S = 32 u)
Calculate the weight of one molecule of oxygen .
[Avogadro's number = 6 x 1023, O = 16 ]
Two oxides of a metal (M) have 20.12% and 11.19% oxygen. The formula of the first oxide is MO. Determine the formula of the second oxide.
Define or explain the term:
Relative atomic mass
Which of the following weighs the least?
Correct the statement, if required.
One mole of chlorine contains 6.023 x 1010 atoms of chlorine.
Calcium chloride when dissolved in water dissociates into its ions according to the following equation.
\[\ce{CaCl2} (aq) → {Ca^{2+} (aq) + 2{Cl}- (aq)}\]
Calculate the number of ions obtained from CaCl2 when 222 g of it is dissolved in water.
