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briannagisellegarcia
21.02.2020 •
Chemistry
A student needs to dilute a 0.46 M Pb ( NO3 ) 2 solution to make 55.0 mL of 0.14 M Pb ( NO 3 ) 2 . Set up the calculation by placing the values with the correct units into the equation. Then, calculate the volume, in milliliters, of the 0.46 M Pb ( NO 3 ) 2 solution that is needed.
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Ответ:
16.7mL
Explanation:
From the information provided, the following were obtained:
C1 = 0.46 M
V1 =?
C2 = 0.14M
V2 = 55mL
Using the dilution formula, (C1V1 = C2V2).., we can obtain the volume (V1) of original solution as follows:
C1V1 = C2V2
0.46 x V1 = 0.14 x 55
Divide both side by 0.46
V1 = (0.14 x 55) / 0.46
V1 = 16.7mL
Ответ: