A 1.90 g sample of elemental lithium,Li(s) is reacted with water, yielding lithium hydroxide, LIOH, and hydrogen. 2Li(s) + 2H20(1)→ 2LIOH(aq) + H2(g); The H2(g) is collected over water at 18 °C. What are the partial pressures of the two gases (hydrogen and water vapor) when contained in a 1.00/ container at 22 °C? What is the total pressure?

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Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.