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lorasvet [3.4K]
2 years ago
7

What would be the definition of concentration?​

Chemistry
1 answer:
MariettaO [177]2 years ago
8 0

Answer:

the action or power of focusing one's attention or mental effort.

Explanation:

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If a 67.3G rock is dissolved in 2.00L of acid, what is the molar concentration of gold in the acid solution
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[Au] = 0.171 M

Explanation:

For this question, we assume the rock is 100 % gold.

First of all, we determine the moles of gold

67.3 g . 1mol/ 196.97g = 0.342 moles

Molar concentration is defined as the moles of solute, contained in 1L of solution.

Our solution volume is 2L.

M = 0.342 mol / 2L = 0.171

Molar concentration, also called molarity of solution is the most typical unit of concentration.

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