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Answer on Physical Chemistry Question for bri

Question #25204
What is the concentration (M) of a NaCl solution prepared by dissolving 5.3 g of NaCl in sufficient water to give 115 mL of solution?

Expert's answer
Concentration of NaCl = amountof NaCl / L

n of NaCl = 5.3 g/ 58.5 = 0.906 mol (but it is in 115 mL)

In one L concentration is 1000/115 * 0.0906 = 0.788 M

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