A 42.7 gram sample of potassium nitrate contains how many grams of potassium?
A) 39.1
B) 16.5
C) 21.4
D) 8.54
E) none of the above
Answer: B
A 42.7 gram sample of potassium nitrate contains how many grams of potassium?
A) 39.1
B) 16.5
C) 21.4
D) 8.54
E) none of the above