A student titrated a solution containing 0.3706 g of an unknown triprotic acid to the endpoint using 28.94 mL of a 0.3021 M KOH solution. What is the molar mass of the unknown acid

How many grams of oxygen gas are contained in a 15 l sample at 1.02 atm and 28°c? show your work.

Adeuteron, 21h, is the nucleus of a hydrogen isotope and consists of one proton and one neutron. the plasma of deuterons in a nuclear fusion reactor must be heated to about 3.02×108 k . what is the rms speed of the deuterons? express your answer using two significant figures.

The equation below shows a chemical reaction. a + b + heat —> c + d according to the law of conservation of energy, which statement is true? a. the reactants absorb heat because they have less energy than the products. b. the products release heat because they have more energy than the reactants. c. the reactants generate heat because they have more energy than the products. d. the products require heat to form because they have less energy than the reactants.