How many grams are in 1.50 moles of KMnO4?

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Question:

How many grams are in 1.50 moles of KMnO4?A. 165.06
B. 660.24
C. 178.41
D. 237.06
E. 484.29

Answer:

There are 237.06 grams in 1.50 moles of KMnO4.

HOW TO CALCULATE MASS:

  • The mass of a substance can be calculated by multiplying the number of moles in the substance by its molar mass. That is;
  • mass of KMnO4 = no. of moles × molar mass of KMnO4
  • Molar mass of KMnO4 = 39 + 55 + 16(4)

= 158g/mol

  • mass of KMnO4 = 158g/mol × 1.5mol
  • Mass of KMnO4 = 237g
  • Therefore, there are 237.06 grams in 1.50 moles of KMnO4.

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