Advertisements
Advertisements
Question
Raunak took 5 moles of carbon atoms in a container and Krish also took 5 moles of sodium atoms in another container of same weight.
- Whose container is heavier?
- Whose container has more number of atoms?
Solution
a. Mass of the container containing 5 moles of C atoms=5 x 12 = 60 g
Mass of container containing 5 moles of Na atoms=5 x 23 = 115 g
Hence, a container of Krish is heavier.
b. Both containers have same number of atoms since they co0ntailn same number of moles.
APPEARS IN
RELATED QUESTIONS
Calculate the molar mass of the following substance:
Hydrochloric acid, HCl
What is the mass of 10 moles of sodium sulphite (Na2SO3)?
Fill in the following blanks :
A mole represents an .............. number of particles of a substance.
Which of the following pair of elements represents a mole ratio of 1 : 1 ?
Deduce the number of molecules of the following compound in the given quantity.
32g oxygen
Calculate the number of moles of CO2 which contain 8.00 g of O2
The molecular formula for elemental sulphur is S8.In a sample of 5.12 g of sulphur:
How many molecules and atoms are present?
1 mole of any substance contains ______ molecules.
Match the following.
| 1. | 8 g of O2 | - | 4 moles |
| 2. | 4 g of H2 | - | 0.25 moles |
| 3. | 52 g of He | - | 2 moles |
| 4. | 112 g of N2 | - | 0.5 moles |
| 5. | 35.5 g of Cl2 | - | 13 moles |
The number of atoms present in 0.1 mole of P4 (at. mass = 31) is ______.
