3 years ago

To the nearest whole number how many moles are in 130 g sample of calcium metal?

1 answer:

6 0

To convert grams to moles, we need the molar mass of the element or compound. remember you can determine the molar mass of a molecule by adding the atomic mass of each atom from the periodic table.

molar mass of Na= 23.0 g/ mol

130 g (1 mol Na/ 23.0 grams)= 5.65 moles or 6 moles.

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