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maria [59]
4 years ago
5

5.00 g of magnesium represents how many moles?

Chemistry
2 answers:
OleMash [197]4 years ago
8 0

<u>Answer:</u> The number of moles of magnesium in given amount is 0.2056 moles.

<u>Explanation:</u>

To calculate the number of moles, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}

We are given:

Given mass of magnesium = 5 g

Molar mass of magnesium = 24.31 g/mol

Putting values in above equation, we get:

\text{Moles of magnesium}=\frac{5g}{24.31g/mol}=0.2056mol

Hence, the number of moles of magnesium in given amount is 0.2056 moles.

Nastasia [14]4 years ago
5 0
Number of moles = mass / molecular mass

Molecular mass of Mg = 24.3 g/mol

n = 5g / 24.3 g/mol
= 0.206 moles
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