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# The pH of a sample of water from a river is 5.0.  A sample of effluent from...

The pH of a sample of water from a river is 5.0.  A sample of effluent from a food processing plant has a pH of 4.0.  The concentration of hydronium ion in the effluent is...

A. 100 times (100x) larger than the river hydronium ion concentration

B. two times (2x) larger than the river hydronium ion concentration

C. ten times (10x) larger than the river hydronium ion concentration

D. one times (1.0x) larger than the river hydronium ion concentration

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