Twenty-seven pounds (27 lb) of chlorine gas is used for treating 750,000 gal of water each day. The chlorine used up by the microorganisms in the water is measured to be 2.6 mg/L. What is the residual (excess) chlorine concentration in the treated water

Explanation:

Chlorine gas available = 27 lbs =

Amount of water used each day = 750000 gal =

Rate at which chlorine gas used = 2.6 mg/L

Chlorine gas used

Residual content of chlorine =

Concentration of the residual chlorine is given by

Concentration of the residual chlorine is .

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one negative thing it that it can kill water animals. another negative thing is it can cause the destruction of ecosystem. one way water pollution can be reduced is to conserve energy.