Problem

Shown below are the results of water quality analyses of the Thames River in London. If th...

Shown below are the results of water quality analyses of the Thames River in London. If the water is treated with 60.00 mg/L of alum to remove turbidity, how much alkalinity will remain? Ignore side reactions with phosphorus and assume all the alkalinity is .

Thames River, London

Constituent	Expressed as	Milligrams per liter
Total hardness	CaCO3	260.0
Calcium hardness	CaCO3	235.0
Magnesium hardness	CaCO3	25.0
Total iron	Fe	1.8
Copper	Cu	0.05
Chromium	Cr	0.01
Total alkalinity	CaCO3	130.0
Chloride	Cl	52.0
Phosphate (total)	PO4	1.0
Silica	SiO2	14.0
Suspended solids		43.0
Total solids		495.0
pHa		7.4

aNot in mg/L.

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