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3 years ago

"how many moles of calcium atoms are in 2.5 moles of calcium carbonate caco3"

Chemistry

1 answer:

Montano1993 [528]3 years ago

5 0

Answer: -

2.5 moles of calcium atoms are in 2.5 moles of calcium carbonate CaCO₃

Explanation: -

In order to solve such types of problems, the first step would be to write the chemical formula of the compound.

The chemical formula of calcium carbonate = CaCO₃

The chemical symbol of Calcium is Ca.

From the formula of calcium carbonate we can see that

1 mole of CaCO₃ has 1 mole of Ca

2.5 mole of CaCO₃ has $\frac{1 mole Ca }{1 mole CaCO₃} x 2.5 mole CaCO₃$

= 2.5 mol of Ca.

∴2.5 moles of calcium atoms are in 2.5 moles of calcium carbonate CaCO₃

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3 years ago

Calculate how much Kool-aid you will need to make 0.5 L of each of the following solutions: 0.1M, 0.4M, & 0.7M.

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3 years ago

18. How many moles of atoms are there in each of

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a) 1 mole of Ne

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c) 1570 moles of Pb.

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Explanation:

The number of moles calculated by Avogadro's number in 6.23*10^23 of Neon.

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3 years ago

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4 years ago

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Answer:

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Explanation:

Hello,

In this case, since 11 mg per kilogram of body weight has the given lethality, the mg that turn out lethal for a chicken weighting 3 kg is computed by using a rule of three:

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Thus, we obtain:

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Regards.

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3 years ago