yvonne147 yvonne147

21-10-2020
Chemistry

contestada

Determine the number of moles of 35.4 grams of Magnesium.

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joliejano joliejano

21-10-2020

Answer:

1.46 moles

Explanation:

You need to multiply 35.4g by Magnesium's molar mass.

Molar mass =1 mole/24.305g

(35.4g)(1 mole Mg/24.305g)= 1.46 moles <- rounded to 3 significant figures

As you can see, grams cancel out and you're left with moles.

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