Chemistry, 02.12.2020 21:30 shaylawymannnnn

What is the concentration of a stock solution if 20 mL was used to make 400 mL of a 1.44 M solution?
30 M
40 M
50 M
5M

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What is the concentration of a stock solution if 20 mL was used to make 400 mL of a 1.44 M solution...