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Andreyy89
3 years ago
11

Without doing any calculations, determine which mass is closest to the atomic mass of carbon. without doing any calculations, de

termine which mass is closest to the atomic mass of carbon. 12.00 amu 12.50 amu 13.00 amu
Chemistry
1 answer:
yarga [219]3 years ago
7 0
The mass closest to the mass of carbon is 12.00 amu

This is because carbon is used as a standard compound in chemistry, and its mass is defined as being 12.00 amu per mole of carbon. Its definition as a standard is such that the mole is defined as, "the amount of substance containing the same number of atoms as 12 grams of carbon-12".
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A 0.2722 g sample of a pure carbonate, X n CO 3 ( s ) , was dissolved in 50.0 mL of 0.1200 M HCl ( aq ) . The excess HCl ( aq )
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Answer:

0.00369 moles of HCl react with carbonate.

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Hence, 0.00369 moles of HCl react with carbonate.

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