객관식
What is the final volume when 20.00 mL of 3.00 M NaCl solution is diluted to a final concentration of 0.100 M?
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6. Chemical Quantities & Aqueous Reactions
Dilutions
Multiple Choice
What volume of 0.10 M NaOH solution can be prepared from 250 mL of 0.30 M NaOH solution?
A
500 mL
B
300 mL
C
1000 mL
D
750 mL
검증된 단계별 안내1
Identify the initial concentration (C1) and volume (V1) of the NaOH solution. Here, C1 = 0.30 M and V1 = 250 mL.
Identify the final concentration (C2) of the NaOH solution you want to prepare, which is 0.10 M.
Use the dilution equation, which is C1 * V1 = C2 * V2, where V2 is the final volume of the solution you want to find.
Substitute the known values into the equation: (0.30 M) * (250 mL) = (0.10 M) * V2.
Solve the equation for V2 to find the final volume of the diluted NaOH solution.
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