Ocean is the largest water body of the world. Sea water contain 96.5% water and 2.5%
salts. The average temperature of the ocean surface waters is about 17°C.
(i) Calculate the number of moles of H2O in 100.2 mg of H2O.
(ii) Calculate the percent composition by mass of each of the elements in H2O.
(iii) How many H2O molecules are present in 50 mg of H2O?
(iv) Calculate the weight of a single H2O molecule.
(v) Convert freezing point of water from degree Celsius to Fahrenheit and Kelvin.
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