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Sophie [7]
3 years ago
9

Where the values come from?

Chemistry
1 answer:
Scrat [10]3 years ago
5 0

Answer:

To find the average atomic mass, you take a certain number of atoms, find the total mass of each isotope, and then divide the total mass of all the atoms by the total number of atoms. Assume that you have, say, 10 000 atoms of carbon

Explanation:

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2 years ago
a sample of compound determined to contain 1.71 g C and 0.287 g H. The corresponding empirical formula is
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Explanation:

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Mass of H = 0.287 g

Step 1 : convert given masses into moles.

Moles of C = \frac{\text{ given mass of C}}{\text{ molar mass of C}}= \frac{1.71g}{12g/mole}=0.142moles

Moles of H = \frac{\text{ given mass of H}}{\text{ molar mass of H}}= \frac{0.287g}{1g/mole}=0.287moles

Step 2 : For the mole ratio, divide each value of moles by the smallest number of moles calculated.

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4 0
3 years ago
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