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OpenStudy (anonymous):
How many moles of Calcium are in a sample of 40g?
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OpenStudy (anonymous):
Welcome to Open Study @Milagros019 :)
OpenStudy (anonymous):
Since the gram atomic mass of calcium is 40.08 and calcium does not form polyatomic molecules, the number of moles in 40g of calcium is 1.0, to the justified number of significant digits.
OpenStudy (anonymous):
Thanks.
OpenStudy (anonymous):
You're very welcome :)
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