solution has a hydronium ion concentration of 1.0 x10 ^ - 1 M. Which of the following statements about this solution is FALSE

The mass has escaped into a gas which you can not see so the law stays true.

Since there is the same amount of agn03 in both silver chloride and silver nitrate they produce the same amount of moles. therefore silver chloride produces the same amount of silver nitrate, so your answer is 15.0 moles of silver nitrate. i hope this !

Zinc contains about 30 protons 

Bromine has atomic number  35  which means there are  35 protons  and  44  neutrons to give a total of 79 nucleons. the fact that it's a positive ion means that it has lost an electron; so there'll be  34 electrons.