Question
Potassium permanganate (a disinfectant) and glycerin (a lubricant) react explosively according to the following equation. 14KMnO_(4)+4C_(3)H_(5)(OH)_(3)arrow 7K_(2)CO_(3)+7Mn_(2)O_(3)+5CO_(2)+16H_(2)O How many moles of KMnO_(4) are consumed to form 0.886 moles of carbon dioxide?
Answer
4.2
(286 Votes)
Archie
Elite · Tutor for 8 years
Answer
2.4808 moles
Explanation
To solve this problem, we will use the stoichiometry of the balanced chemical equation. The equation tells us the ratio of moles of potassium permanganate (
) to moles of carbon dioxide (
) produced in the reaction. According to the equation, 5 moles of
are produced for every 14 moles of
consumed. We can set up a proportion to find the moles of
consumed based on the moles of
produced:
Given that we have 0.886 moles of
, we can solve for the moles of
consumed:
Now, let's calculate the moles of
:
So, 2.4808 moles of
are consumed to form 0.886 moles of carbon dioxide.