Question

5 litre of 1 molar nacl solution mixed with another 3 litre of 0.5 molar nacl solution then find the molarity of resulting solution

Answer 1

Answer:

Explanation:

M1 = 1M. M2 = 0.5M

V1 = 5L V2 = 3L

Final volume = V1 + V2 = 5+3 = 8L

Final molarity = M1V1 + M2V2

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V1 + V2

Final molarity = 1 × 5 + 0.5 × 3

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8

Final molarity = 5 + 1.5

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8

Final molarity = 0.8125 M -- answer

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