Advertisements
Advertisements
प्रश्न
Calculate the number of atoms in the following:
52 moles of He
Advertisements
उत्तर
52 moles of He atoms = 52 x 6.02 x1023
= 313.04 x 1023
= 3.13 x 1025
संबंधित प्रश्न
A gas cylinder can hold 1 kg of hydrogen at room temperature and pressure
1) Find the number of moles of hydrogen present.
2) What weight of CO2 can the cylinder hold under similar conditions of temperature and pressure? (H = 1, C = 12, O = 16)
3) If the number of molecules of hydrogen in the cylinder is X, calculate the number of CO2 molecules in the cylinder under the same conditions of temperature and pressure.
4) State the law that helped you to arrive at the above result.
What is meant by ‘a mole of carbon atoms’ ?
Define the term.
Molar volume
A flask contains 3.2g of sulphur dioxide.Calculate the following : The moles of sulphur dioxide present in the flask.
What is the value of molar volume of a gas at S.T.P?
Define the term:
Gram atom
Find the number of molecules in 1.8 g of H2O.
Calculate the number of moles of methane in 0.80 g of methane.
Calculate the number of oxygen atoms in 0.10 mole of Na2CO3 . 10H2O.
Calculate the number of moles in 7g of nitrogen.
