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3 years ago

11

The world produces about 3.9 billion tons of food every year. Of that amount, approximately 2.6 billion tons is consumed each ye

ar. The rest is wasted. What percentage of food is wasted every year? Choose the closest answer.
a.30%
b.33.33%
c.60%
d.66.66%

2 answers:

pentagon [3]3 years ago

6 0

B. Without a doubt,
(3.9-2.6)÷3.9
=33.3333...
≈33.33%

nika2105 [10]3 years ago

4 0

B. 33.33% hope this helps

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The question is incomplete, here is the complete question:

A solution contains 0.115 mol $H_2O$ and an unknown number of moles of sodium chloride. The vapor pressure of the solution at 30°C is 25.7 torr. The vapor pressure of pure water at this temperature is 31.8 torr. Calculate the number of grams of sodium chloride in the solution. (Hint: Remember that sodium chloride is a strong electrolyte.)

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