Question on: JAMB Chemistry - 2009
What volume of 1.5M solution of KOH would contain 0.045 moles
A
67.50 cm3
B
30.00 cm3
C
6.75 cm3
D
3.00 cm3
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Correct Option: B
To solve this problem, we can use the following formula:
Moles = Molarity × Volume (in Liters)
We are given:
* Molarity (M) = 1.5 M
* Moles = 0.045 moles
We need to find the volume. Rearrange the formula to solve for volume:
Volume (in Liters) = Moles / Molarity
Plug in the given values:
Volume (in Liters) = 0.045 moles / 1.5 M = 0.03 L
Convert Liters to cm³:
1 L = 1000 cm³
0.03 L = 0.03 * 1000 cm³ = 30 cm³
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