How many different naturally-occurring common amino acids are there?

How many molecules of sucrose c12h22o11 are there in 454 grams of sucrose

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

How many grams of co(g) are there in 74.5 ml of the gas at 0.933 atm and 30o c?