Calculate the molarity of a solution made by adding 250.0 ml of water to 85.00 ml of a 0.157 m solution.

The molarity of the resulting solution after adding the water is 0.0398 M.

The given parameters;

The molarity of the resulting solution is calculated as follows;

where;

The molarity of the resulting solution is calculated as;

Thus, the molarity of the resulting solution after adding the water is 0.0398 M.

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0.0398 mol·L⁻¹

Explanation:

You are diluting the solution with water, so you can use the dilution formula

You can solve this equation to get

specific gravity is the density of a substance divided by the density of water. since (at standard temperature and pressure) water has a density of 1 gram/cm3, and since all of the units cancel, specific gravity is usually very close to the same value as density

so "c" is the answer

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