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Mama L [17]
3 years ago
12

There are many sources of air pollution in the united states and around the world. Some are natural sources, and other come from

human activities. Which of these examples is a natural source of air pollution?
A.) car exhaust fumes
B.) methane gas from cow manure
C.) dust from fertilizers used on crops
D.) smoke from the burning of fossil fuels
Chemistry
1 answer:
KATRIN_1 [288]3 years ago
4 0
B should be your best guess
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Explanation:

Given that:-

Mass of sucrose added = 1.2 g

Volume of water = 75 mL = 0.075 L ( 1mL = 0.001 L )

%w/v is defined as the mass of the solution in 1 L of the solution.

So,

\%\ w/v=\frac{Mass_{solute}}{Volume_{Solution}}

\%\ w/v=\frac{1.2\ g}{0.075\ L}=16\ g/L

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