Consider a 500. mL buffer that contains 0.12 M HOCl and 0.080 M KOCl. What is the pH of this buffer if Ka (HOCl) = 3.5 x 10-8?

An alkaline battery produces electrical energy according to the following equation. zn(s) + 2 mno2(s) + h2o(l) zn(oh)2(s) + mn2o3(s) (a) determine the limiting reactant if 17.5 g zn and 31.0 g mno2 are used. (type your answer using the format ch4 for ch4.) (b) determine the mass of zn(oh)2 produced. _ g

Which statement describes james chadwick’s discovery.

Calculate the mass of carbon in 97.0 g of sucrose c12h22o11