Problem 68
Write the formula for (a) permanganic acid, (b) sulfurous acid, and (c) dichromic acid.
Problem 69
Name the following acid salts: (a) \(\mathrm{NaHCO}_{3}\), (b) \(\mathrm{KH}_{2} \mathrm{PO}_{4}\) (c) \(\left(\mathrm{NH}_{4}\right)_{2} \mathrm{HPO}_{4}\)
Problem 70
Name the following acid salts: (a) \(\mathrm{KHSO}_{4},\) (b) \(\mathrm{LiHSO}_{3}\), (c) \(\mathrm{PbHAsO}_{4}\)
Problem 73
The formula for the sulfite ion is \(\mathrm{SO}_{3}^{2-}\). What is the formula for sulfuric acid?
Problem 75
Butanoic acid (also called butyric acid), \(\mathrm{HC}_{4} \mathrm{H}_{7} \mathrm{O}_{2},\) gives rancid butter its bad odor. What is the name of the salt \(\mathrm{NaC}_{4} \mathrm{H}_{7} \mathrm{O}_{2} ?\)
Problem 76
Oxalic acid, \(\mathrm{H}_{2} \mathrm{C}_{2} \mathrm{O}_{4},\) is the poison in rhubarb leaves. Name its potassium salt.
Problem 77
Sodium formate, \(\mathrm{NaCHO}_{2},\) is used in fabric dyeing. The acid form is found in the venom of ant bites. What is the name of the acid that this salt can be made from?
Problem 78
Potassium stearate, \(\mathrm{KC}_{18} \mathrm{H}_{36} \mathrm{O}_{2},\) is an effective soap for washing your hands or clothes. What acid is reacted with \(\mathrm{KOH}\) to make this compound?
Problem 80
Predict which compounds are soluble in water. (a) \(\mathrm{HgBr}_{2}\) (b) \(\mathrm{Sr}\left(\mathrm{NO}_{3}\right)_{2}\) (c) \(\mathrm{Hg}_{2} \mathrm{Br}_{2}\) (d) ammonium phosphate (e) lead(II) iodide (f) lead(II) acetate
Problem 81
Complete and balance the following molecular equations, being careful to apply the solubility rules. Write balanced ionic and net ionic equations for the reactions. (a) \(\mathrm{FeSO}_{4}(a q)+\mathrm{K}_{3} \mathrm{PO}_{4}(a q) \longrightarrow\) (b) \(\mathrm{AgC}_{2} \mathrm{H}_{3} \mathrm{O}_{2}(a q)+\mathrm{AlCl}_{3}(a q) \longrightarrow\) (c) chromium(III) chloride \(+\) barium hydroxide
