Water containing more than 3.0 grains of dissolved solids per gallon is considered to be hard [1 grain (gr) = 64.8 mg]. So, if a kettle contains 18 gal of tap water, which is allowed to evaporate. The solid material left behind has a mass of 1.7 g. Is such tap water considered to be hard?
Answers: 2
Chemistry, 21.06.2019 15:30
1. baking powder is a 1: 1 molar mixture of cream of tartar (khc4h4o6) and baking soda (nahco3). a recipe calls for two teaspoons (a total of 8.0 grams) of cream of tartar. how much baking soda must be added for both materials to react completely?
Answers: 2
Chemistry, 21.06.2019 18:00
Now consider the reaction when 45.0 g naoh have been added. what amount of naoh is this, and what amount of fecl3 can be consumed by it?
Answers: 3
Chemistry, 22.06.2019 07:20
Why does his teacher ask him to balance the equation by including the correct coefficient
Answers: 1
Water containing more than 3.0 grains of dissolved solids per gallon is considered to be hard [1 gra...
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