What is the mass of 0.049 mol of H2O?Give your answer in grams and to three decimal places.(Molar mass of H2O = 18.01 g mol-1)
Question
What is the mass of 0.049 mol of H2O?Give your answer in grams and to three decimal places.(Molar mass of H2O = 18.01 g mol-1)
Solution
To find the mass of a certain number of moles of a substance, you can use the formula:
mass = number of moles * molar mass
Given: Number of moles = 0.049 mol Molar mass of H2O = 18.01 g/mol
Substitute these values into the formula:
mass = 0.049 mol * 18.01 g/mol = 0.88249 g
Rounded to three decimal places, the mass of 0.049 mol of H2O is 0.882 g.
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