mitchellmarquite
27.10.2020 •
Chemistry
To what volume (in mL) would you need to dilute 40.0 mL of a 1.25 M solution of NaCl to make a 0.0500 M solution of NaCl
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Ответ:
1000 mL.
Explanation:
From the question given above, the following data were obtained:
Volume of stock solution (V1) = 40 mL
Molarity of stock solution (M1) = 1.25 M
Molarity of diluted solution (M2) = 0.05 M
Volume of diluted solution (V2) =...?
The volume of diluted solution can be obtained as shown below:
M1V1 = M1V1
1.25 × 40 = 0.05 × V2
50 = 0.05 × V2
Divide both side by 0.05
V2 = 50/0.05
V2 = 1000 mL
Therefore, the stock solution must be diluted to 1000 mL to obtain a 0.05 M solution of NaCl.
Ответ:
1.b
2.h/g u choose
Explanation: