Prelaboratory Assignment 1. Write the name of each compound below. Use solubilit

Question

Prelaboratory Assignment 1. Write the name of each compound below. Use solubility rules to predict whether each of the following substances is soluble or insoluble. a. (NH4)sPO4 b. ZnSO4 c. Cu(NO3)2 d. CaC204 e. Cr(OH)3 Each of the following substances is soluble in water. Write the formula of each. Tell how many ions are made when each dissolves in water. e.g. sodium carbonate dissociates into three ions, two sodium ions, 2 Na and one carbonate ion CO] a. cobalt(II) bromide b. silver nitrate c. magnesium chloride d. lead(II) acetate e. ammonium sulfate 2.

Explanation / Answer

Ans 1 :

The names of the compounds can be determined by looking at the constituent atoms present in the compound and their relative numbers. The solubilty of these compounds in water can be detected looking at the solubility rules and their solubility values.

So here :

a) (NH4)3PO4 : Ammonium phosphate ; soluble

b) ZnSO4 : Zinc sulfate ; soluble

c) Cu(NO3)2 : Copper (II) Nitrate ; soluble

d) CaC2O4 : Calcium oxalate ; insoluble

e) Cr(OH)3 : Chromium (III) hydroxide ; insoluble

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