How many moles of water were lost if the amount of water lost was 0.406 grams? do not include units and assume three significant figures in all numbers. be sure to include the zero before the decimal if the number is less than one.

0.0226

Explanation:

Given data:

Mass of water = 0.406 g

Molar mass of water = 18.0 g/mol

Number of moles = ?

Solution:

Number of moles = mass/ molar mass

Number of moles = 0.406 g / 18.0 g/mol

Number of moles = 0.0226 mol

The answer with out units and three significant figures is 0.0226. In this value the significant figures are 226.

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