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ki77a [65]
4 years ago
7

Molar mass of carbon

Chemistry
1 answer:
Taya2010 [7]4 years ago
7 0

Answer: 12.011g/mol

Explanation: The molar mass of any element is usually stated at the bottom of periodic table (depending of your table anyways). Remember that the periodic table speaks to you in moles so every molar mass under the element is for 1 mole. By this I mean for example, 1 mole of Carbon = 12.011g of Carbon.

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Answer: 3.5\times 10^{-4}

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To calculate the moles, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text {Molar mass}}

Given mass of theobromine (C_7H_8N_4O_2) = 0.064 g

Molar mass of theobromine (C_7H_8N_4O_2)=12\times 7+1\times 8+14\times 4+16\times 2=180 g

\text{Number of moles}=\frac{0.064g}{180g/mol}=3.5\times 10^{-4}moles

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