Help with these chem problems! 1) 2.000 x 1018 am3 to pm3

2) Convert 0.0006630 nm3 to fm3

Thanks!

Asample of the male sex hormone testosterone, c19h28o2, contains 3.88×10^21 atoms of hydrogen.(a) how many atoms of carbon does it contain? (b) how many molecules of testosterone does it contain? (c) how many moles of testosterone does it contain? (d) what is the mass of this sample in grams?

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

Which of the following shapes would represent a molecule with two bonded atoms and 3 lone pairs on only one of them , trigonal planar , bent , trigonal pyramidal , linear