When 18.02 g of water is decomposed by electrolysis, 16.00 g of oxygen and 2.02 g of hydrogen are formed. according to the law of definite proportions. what mass, in grams, of hydrogen will be formed by the electrolysis of 795 g of water?

According to the law of definite proportions, in a compound the same elements are always present in the same proportions.

On decomposition of 18.02 g of water by electrolysis, 16.0 g of oxygen and 2.02 g of hydrogen are formed.  (given)

Therefore, the ratio of grams of hydrogen to grams of water is:

2.02 g : 18.02 g

So, this ratio can be used to determine the mass of water in 795 g. As:

Hence, of hydrogen will be formed by the electrolysis of 795 g of water.

hey there!

boiling point is the temperature at which the vapor pressure of the liquid equals atmospheric pressure. the vapor pressure of solvent molecules is decreased when a solute is added, so a higher temperature is required to increase the number of solvent molecules in the gas phase above the liquid.

at the freezing point, the vapor pressures of the solid and liquid are equal; a lower temperature is needed to reduce the number of solvent particles above the liquid.

hope this you

tobey

pure substance: iron,copper

impure substance: water,charcoal