14. check the following problem for errors. if you find an error, identify it, tell why it is an error and correct the error solving the problem correctly. convert 0.45 g zinc hydroxide to moles. (hint: there are errors)
0.65 g znoh 82.41 mol = 3.22 x 10 25 mol
6.02x1023 g
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Sulfuric acid (a component of acid rain) reacts with limestone (calcium carbonate) to produce calcium sulfate and carbon dioxide. this damages buildings and statues made of limestone. which solution of sulfuric acid will damage these structures more quickly? a. 0.001% b. 0.005% c. 0.010% d. 0.015%

What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?

Answer asap : ( a. how does mucus prevent the entry of pathogens? b. describe two ways white blood cells protect us from pathogens.