Question

Chem 110 - Chapter 7 Assignment 1. Identify whether the following ionic compounds are soluble or insoluble in water a. KCI b. NaNO, C. AgCl d. (NH),PO, e. NaOH 1. Caso na of crear is dissolved in

Answer 1

KCl, NaNO₃,(NH₄)₃PO₄,NaOH are soluble in water .All other salts(AgCl ,CaSO₄)  are insoluble.

solubility rules

1) Salts containing Cl ^-, Br ^-, or I ^- are generally soluble,Important exceptions to this rule are halide salts of Ag⁺, Pb²⁺, and (Hg₂)²⁺. Thus, AgCl, PbBr₂, and Hg₂Cl₂ are insoluble.

2)Salts containing Group I elements (Li⁺, Na⁺, K⁺, Cs⁺, Rb⁺) are soluble

3)Salts containing nitrate ion (NO₃^-) are generally soluble.

4)most sulfate salts are soluble. Important exceptions to this rule include CaSO₄, BaSO₄, PbSO₄, Ag₂SO₄ and SrSO₄

5)Hydroxide salts of Group I elements are soluble.

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