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Chemistry
Yair Schroeder
29 September, 09:04
How many moles of calcium are in a 351 kg sample?
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Marshall Holden
29 September, 10:30
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351 kg = 351 x 1000 = 351000 grams
number of moles can be calculated using the following rule:
number of moles = mass / molar mass
From the periodic table:
molar mass of calcium = 40.078 grams
Therefore, substituting in the above equation:
number of moles = 351000 / 40.078 = 8757.922 moles
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