How many moles of Sodium bicarbonate are in 100 g of sodium bicarbonate, NaHCO,?

A.84mol
B.1.19mol
C.0.84 mol
D.2.34 mol

Water (2510 g ) is heated until it just begins to boil. if the water absorbs 5.09×105 j of heat in the process, what was the initial temperature of the water?

Which of the following observations indicates that there is a small, dense, positively charged part in the center of an atom? some uncharged particles are scattered by a gold foil. all uncharged particles are attracted towards a gold foil. all positively charged particles pass straight through a gold foil. some positively charged particles bounce back from a gold foil.

How would the number of moles (n) of o2 change if the atmospheric pressure doubled but all other variables stayed the same