Asample of gas has a mass of 827 mg . its volume is 0.270 l at a temperature of 88 ∘ c and a pressure of 975 mmhg . find its molar mass.

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 of the following best supports the concept that genetic information is passed on to offspring from both of their parents, not just one?

How many moles are in 43.9 l of oxygen