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प्रश्न
Convert into mole.
12 g of oxygen gas
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उत्तर
32 g of oxygen gas = 1 mole
Then, 12 g of oxygen gas = 12/32 mole = 0.375 mole
संबंधित प्रश्न
Convert into mole.
20 g of water
One of the following elements has an atomicity of ‘one’. This element is :
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]
Explain the term:
Molar volume
Find the number of molecules in 73 g of HCl.
Calculate the mass of 0.1 mole of the following:
Na2SO4.10H2O
(Ca = 40, Na = 23, Mg = 24, S = 32, C = 12, Cl = 35.5, O = 16, H = 1)
Calculate the number of atoms in the following:
52 g of He
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 |
How many grams are there in the following?
5 moles of sulphur molecule, S8
