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wariber [46]
3 years ago
9

Describe the factors that affect surface and deep water currents

Chemistry
1 answer:
olchik [2.2K]3 years ago
7 0
I’m having a hard time understanding your question
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How many moles are in 9.8 grams of calcium?
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<span>when the number of moles Ca = mass of Ca / molar mass of Ca.

and we can get the molar mass of Ca, it is = 40 g/mol

and we have already the mass of Ca (given) = 9.8 g

so, by substitution: the moles Ca = 9.8 g / 40 g/mol

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mass = 1.84 x 10⁻⁶ g = 1.84 μg

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