The mass of Hydrogen at S.T.P. that is present in a vessel which can hold 4 grams of oxygen under similar conditions is
2 gm of H2 → 32gm of O2
1 mole of O2 → 1 mole of H2
4 g of O2 → 18 mole
18 mole H2 = 0.25 g
10 gram of hydrogen is liberated by the electrolysis of NaOH solution at the cost of Rs.20. The cost of current to liberate 10gram of oxygen under similar conditions is in :
A gas cylinder can hold 1kg of hydrogen at room temperature and pressure:(i) Find the number of moles of hydrogen present.(ii) What weight of CO2 can the cylinder hold under similar conditions of temperature and pressure? (H=1, C=12, O=16 )(iii) 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.(iv) State the law that helped you to arrive at the above result.
A gas cylinder can hold 1kg of hydrogen at room temperature and pressure.(i) Find the number of moles of hydrogen present.(ii) What weight of CO2 can the cylinder hold under similar conditions of temperature and pressure?(H=1, C=12, O=16)
(iii) 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.(iv) State the law that helped you to arrive at the above result.