What volume of a 0.550 M solution of potassium hydroxide can be made with 14.3 g of potassium hydroxide? (Ignore significant figures for this problem.)
A) 26.0 mL
B) 463 mL
C) 255 mL
D) 2158 mL
E) 2.16 mL

Question

Quizplus · Accepted Answer

1. Calculate the moles of potassium hydroxide: 
   moles = mass / molar mass 
         = 14.3 g / 56.11 g/mol 
         = 0.255 moles 
2. Calculate the volume of the solution: 
   volume = moles / concentration 
          = 0.255 moles / 0.550 mol/L 
          = 0.463 L 
          = 463 mL (since 1 L = 1000 mL) 
Therefore, the best choice is B.

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