# Calculating Coal Required

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How many metric tons of 5% S coal would be needed to yield the H2SO4 required to produce a 4.5 cm rainfall of pH 2.00 over an area of 100 square kilometers?

Hint: Calculate vol rain, mol H+, mass of S, mass of coal

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#### Solution Preview

pH = - log [H+]

rearrange:

10^(-2) = [H+]

10^-2 = 0.01 Molar

volume of water = 100 square kilometres = 4 500 000 000 ...

#### Solution Summary

The solution calculates the amount of coal needed to yield the H2SO4 required to produce a 4.5 cm rainfall of pH 2.00 over an area of 100 square kilometers.

$2.49