How many grams are in 1.5moles of calcium

In the 1800s, one of the statements in john dalton's atomic theory was that atoms are indivisible. later experimental evidence led to the discovery of subatomic particles such as neutrons, electrons, and protons. what happened to the indivisible atom part of dalton's atomic theory, and why?

How many molecules are found in 1.32 mol of nacl?

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