Advertisements
Advertisements
Question
Explain the term:
Gram mole
Advertisements
Solution
A sample of a substance with its mass equal to its gram molecular mass is called one gram molecule of this substance or one gram mole.
For example, the gram molecular mass of oxygen is 32g. So one gram mole of oxygen is 32g.
APPEARS IN
RELATED QUESTIONS
What is the mass of 0.2 mole of oxygen atoms ?
Fill in the following blanks :
64 g of oxygen gas contains ................ moles of oxygen atoms.
How many moles of oxygen atoms are present in one mole of the following compounds ?
- Al2O3
- CO2
- Cl2O7
- H2SO4
- Al2(SO4)3
Deduce the number of molecules of the following compound in the given quantity.
32g oxygen
Calculate the number of molecules in 12.8g of sulphur dioxide gas. Take Avogadro's number as 6 x 1023.
[S = 32, 0 = 16 ]
The equation for the burning of octane is:
\[\ce{2C8H18 + 25O2 -> 16CO2 + 18H2O}\]
- How many moles of carbon dioxide are produced when one mole of octane burns?
- What volume, at STP, is occupied by the number of moles determined in (a)?
- If the relative molecular mass of carbon dioxide is 44, what is the mass of carbon dioxide produced by burning moles of octane?
- What is the empirical formula of octane?
Explain the term:
Molar volume
Find the number of molecules in 73 g of HCl.
Find the number of moles in 10 g of CaCO3.
Calculate the number of atoms in the following:
52 g of He
