49.8 mL of 0.771 M perchloric acid is added to 33.0 mL of potassium hydroxide, and the resulting solution is found to be acidic. 21.4 mL of 1.38 M sodium hydroxide is required to reach neutrality. What is the molarity of the original potassium hydroxide solution?

Calculate the mass percent of hydrogen in methyl acetate

Which statements are true concerning mineral formation? check all that apply. the slower the cooling, the larger the crystals. the faster the cooling, the smaller the crystals. crystals formed from magma are smaller than crystals formed from lava. minerals can only form in solutions when the solution is heated deep underground. when a solution cools, elements and compounds leave the solution and crystallize as minerals. minerals formed from hot water solutions can form narrow channels in the surrounding rock.

Nitrogen dioxide decomposes according to the reaction 2 no2(g) ⇌ 2 no(g) + o2(g) where kp = 4.48 × 10−13 at a certain temperature. if 0.70 atm of no2 is added to a container and allowed to come to equilibrium, what are the equilibrium partial pressures of no(g) and o2(g)