Answer:
0.462 moles KOH
Step-by-step explanation:
To find the number of KOH moles, you need to (1) convert mL to L and then (2) calculate the number of moles (using the molarity ratio). The molarity ratio represents the amount of moles per every 1 liter. The final answer should have 3 sig figs like the given values.
(Step 1)
1,000 mL = 1 L
337 mL KOH 1 L
---------------------- x ------------------- = 0.337 L KOH
1,000 mL
(Step 2)
Molarity = moles / liter <----- Molarity ratio
1.37 M = ? moles / 0.337 L <----- Insert known values
0.462 = ? moles <----- Multiply both sides by 0.337