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sesenic [268]
3 years ago
11

If the density of ocean water at a depth of 1.00 x 104 m is 1.071 g/mL and if 26.0 g of water at that depth contains 182mg of po

tassium chloride, what is the molarity of potassium chloride in the sample?

Chemistry
2 answers:
sammy [17]3 years ago
8 0

Explanation:

Below is an attachment containing the solution.

LenKa [72]3 years ago
4 0

Answer:

Molarity of potassium chloride is 0.100M

Explanation:

Molarity is defined as moles of solute per liter of solvent.

Moles of solute (Potassium chloride; MW: 74.55g/mol):

0.182g × (1mol / 74.55g) = <em>2.44x10⁻³mol KCl</em>

<em />

Liters of water using density are:

26.0g Water × ( 1mL / 1.071g) × (1L / 1000mL) = <em>0.0243L</em>

<em />

Thus, molarity of KCl in the sample is:

<em>2.44x10⁻³mol KCl / 0.0243L = </em><em>0.100M</em>

<em />

I hope it helps!

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