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Test Tube A contains 1 mL each of solutions of Ba(NO3)2 and H2SO3. Test tube B...

Test Tube A contains 1 mL each of solutions of Ba(NO3)2 and H2SO3. Test tube B contains 1 mL each of solutions of Ba(NO3)2 , H2SO3 and concentrated HCl. A white precipitate of BaSO3 forms in test tube A while no precipitate forms in test tube B.

a. Write the equations showing: i. equilibria (2) established by H2SO3 in water and ii. formation of BaSO3(s) from its ions.

b. Describe the ecperimental observations in terms of the comming ion effect on the equilibria established in each test tube.

c. What will happen in test tube B if concentrated NaOH is slowly added.

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