객관식
In the dilution equation m_1 v_1 = m_2 v_2, what do m_1 and v_1 represent?
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6. Chemical Quantities & Aqueous Reactions
Dilutions
Multiple Choice
A 0.1 M solution is diluted by three orders of magnitude. What is the new concentration?
A
0.1 M
B
0.0001 M
C
0.001 M
D
0.01 M
검증된 단계별 안내1
Understand that diluting a solution by three orders of magnitude means the concentration decreases by a factor of 10^3 (which is 1000).
Write the initial concentration as \(C_1 = 0.1\,M\) and the dilution factor as \(10^3 = 1000\).
Use the dilution relationship: \(C_2 = \frac{C_1}{\text{dilution factor}}\) where \(C_2\) is the new concentration after dilution.
Substitute the values into the formula: \(C_2 = \frac{0.1}{1000}\).
Simplify the expression to find the new concentration, which will be \(0.0001\,M\).
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