Asked by nate

How many mL of a 0.90% (m/v) NaCl stock solution will you need to to prepare 250 mL of a 0.225% m/v NaCl solution?
Answered by DrBob222
The dilution formula, which works for M, m, and N (perhaps others) is
mL x % = mL x %.
Substitute and solve for mL.
Answered by lena
225
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