Water Hardness (L1)
pH and Alkalinity (L3)
Determination of Cl- in water (L4)
Fluoride and Nitrate (L6/L7)
100

What two cations are associated with hard water?

Magnesium (Mg 2+) and Calcium (Ca2+)

100

How do we determine alkalinity?

Titration!

100
Is Chloride a cation or an anion?

an anion!

100

How does nitrate end up in tap water?

Fertilizer runoff

200

Name ONE effect of excessive water hardness

Clogging/Scaling/Soap or Detergent ineffectiveness

200

What is alkalinity?

The acid-neutralizing property of a substance

200

What is a source of Chloride?

Fertilizers or Ion exchange/softening

200

What is a safe amount of Fluoride in water?

1 ppm

300

Why does a surface water source have a high magnesium hardness?

great dissolution of high magnesium materials

300

What substance makes tap water alkaline?

carbonate species

300

Which standard had the highest EP?

Des Moines


300

What substance adsorbs Fluoride?

Lanthanum Fluoride (LaF3)
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