Answer:
1.5 M
Explanation:
We want to find the molarity of the solution, so to do so, we need two pieces of information: the moles of KOH and the volume.
We are given 10 grams of KOH, so we can convert this to moles by dividing by the molar mass of KOH, which is 39.1 + 16 + 1.01 = 56.11 g/mol. So we have:
[tex]10gramsKOH*\frac{1mol}{56.11g} =0.18molKOH[/tex]
Now, we know that the final volume is 120 mL, which is equivalent to 0.120 L, so divide 0.18 by 0.120 to get the molarity:
0.18 mol / 0.120 L = 1.5 mol/L
Thus, the answer is 1.5 M.
