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Ber [7]
3 years ago
9

The density of copper is 8.68 g/mL use the density value to determine how many moles are

Chemistry
1 answer:
statuscvo [17]3 years ago
5 0

Answer:

17.1 mol

Explanation:

(8.68g/mL * 125 mL) = 1085 g

1085 g/ (63.55 g/mol) = 17.1 mol

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A bottle of a commercial reagent-grade hydrochloric acid, HCI, has the following
Doss [256]

The volume of concentrated HCl : 2.073 ml

<h3>Further explanation</h3>

Given

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37% x 1.19 g/ml =0.4403 g/ml

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or we can use formula :

\tt M=\dfrac{\%\times \rho\times 10}{MM}\\\\M=\dfrac{37\times 1.19\times 10}{36.5}\\\\M=12.06

Dilution formula :

M₁V₁=M₂V₂

12.06 M x V₁ = 0.1 M x 0.25 L

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3 years ago
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Sindrei [870]

Answer:

D 12

Explanation:

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2 atoms Na

3 atoms   H

1 atom       I

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3 0
3 years ago
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What is the boiling point of carbon?
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The respect given to all kind of labour <br>give one word answer<br>please help me fast ​
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2 years ago
A hydrated sample of cobalt(II) chloride was analyzed and found to consist of 45.44% water. What is the formula of the hydrate
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