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Chemistry
, 24.08.2019 01:30
katier9407
How many moles are in 15.0 grams of calcium?
0.374 moles
2.67 moles
601.5 moles
2.40 x 1025 moles
Answers: 1
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Answer from:
iiisavageoreo
Use the atomic mass of calcium
Ca atomic mass = 40.1 g / mol
Now use the formula:
mass = #moles * atomic mass, and solve for #moles
#moles = mass / atomic mass = 15.0g / 40.1g/mol = 0.374 mol
0.374 moles
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You know the right answer?
How many moles are in 15.0 grams of calcium?
0.374 moles
2.67 moles
601.5 moles
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