Advertisements
Advertisements
प्रश्न
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 |
Advertisements
उत्तर
| 1. | 8 g of O2 | - | 0.25 moles |
| 2. | 4 g of H2 | - | 2 moles |
| 3. | 52 g of He | - | 13 moles |
| 4. | 112 g of N2 | - | 4 moles |
| 5. | 35.5 g of Cl2 | - | 0.5 moles |
APPEARS IN
संबंधित प्रश्न
Calculate the percentage of water of crystallization in CuSO4.5H2O
(H = 1, O = 16, S = 32, Cu = 64)
How many moles are there in 34.5 g of sodium ? (Atomic mass of Na = 23 u)
What is the mass of 5 moles of sodium carbonate (Na2CO3) ?
(Atomic masses : Na = 23 u ; C = 12 u ; O = 16 u)
Calculate the mole ratio of 240 g of calcium and 240 g of magnesium. (Ca = 40 u ; Mg = 24 u)
Explain the term:
Gram atom
Complete the following calculations. Show working for complete credit :
Calculate the mass of calcium that will contain the same number of atoms as are present in 3.2 gm of Sulphur. [Atomic masses : S = 32, Ca = 40]
A student puts his signature with a graphite pencil. If the mass of carbon in the signature is 10-12 g, calculate the number of carbon atoms in the signature.
Calculate the number of moles in 7g of nitrogen.
How many grams are there in the following?
3 moles of chlorine molecule, Cl2.
Calculate the number of moles of magnesium present in a magnesium ribbon weighing 12 g. Molar atomic mass of magnesium is 24g mol–1.
