What is the mass of 5 moles of water?
| February 13, 2021 | education
Given:
n (H2O) = 5 mol
To find:
m (H2O) =?
Decision:
1) We derive the formula for solving the problem: n = m / M. Hence: m = n x M.
2) We know the number of moles of water, we will find the molecular weight based on the periodic table.
M (H2O) = (1 x 2) + 16 = 18 g / mol.
3) m (H2O) = 5 mol x 18 g / mol = 90 g.
Answer: m (H2O) = 90 g.
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