gracehernandezschuma gracehernandezschuma

20-02-2020
Chemistry

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Calculate the molarity of a solution prepared by dissolving 195 g of sodium chloride (NaCl) in enough water to make 2.8 liters of solution.

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gbustamantegarcia054 gbustamantegarcia054

02-03-2020

Answer:

molarity of a solution = 1.192 M

Explanation:

molarity [=] mol compound / L solution

∴ mass NaCl = 195 g

∴ molar mass NaCl = 58.44 g/mol

⇒ moles NaCl = (195 g)*(mol/58.44 g) = 3.34 mol

∴ Volumen solution = 2.8 L

⇒ Molarity NaCl solution = (3.34 mol)/(2.8 L) = 1.192 M

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