Advertisements
Advertisements
प्रश्न
Explain the term:
Gram mole
Advertisements
उत्तर
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
संबंधित प्रश्न
Convert into mole.
12 g of oxygen gas
How many moles are 3.6 g of water ?
Calculate the mass in grams of 0.17 mole of hydrogen sulphide, H2S. (Atomic masses : H = 1 u, S = 32 u)
Calculate the number of molecules in 12.8g of sulphur dioxide gas. Take Avogadro's number as 6 x 1023.
[S = 32, 0 = 16 ]
Define the term:
Relative molecular mass
How many grams of HCl are present in 0.1 mole of it?
Correct the statement, if required.
Under the same conditions of temperature and pressure, equal volumes of all gases contain the same number of atoms.
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 |
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.
The number of atoms present in 0.1 mole of P4 (at. mass = 31) is ______.
