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Question - 1-Calculate the pH of a solution in which [H+] = 1.25 x 10-12 M. [1] Report your answer to 3 SF only!

2-Using the average atomic mass of lithium, calculate the mass, in amu, for a sample of 2.78 x 1025atoms of Li. [1] amu. Enter your answer using scientific notation.

3- Given the following balanced equation: 2 H2+ O2? 2H2O a) how many moles of water would form if 14.0 g of H2 reacted? moles b) how many grams of water would form if 14.0 g of O2 reacted? grams Comment

4-In a balanced chemical equation, the [1] indicate the molar relationships between any two reactants, any two products, or between any reactant and product

Thank you! My final is tomorrow and I am in desperate need!

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Category:- Chemistry
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