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Part A 974 ml NaCl solution is diluted to a volume of 1.26 L and a concentration of 7.00 M. What was the initial concentratio
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Answer #1

use dilution formula

M1*V1 = M2*V2

1---> is for stock solution

2---> is for diluted solution

Given:

M2 = 7 M

V1 = 0.974 L

V2 = 1.26 L

use:

M1*V1 = M2*V2

M1 = (M2 * V2) / V1

M1 = (7*1.26)/0.974

M1 = 9.06 M

Answer: 9.06 M

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