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

2) Convert 0.0006630 nm3 to fm3

Thanks!

Calculate - analysis of compound composed of iron and oxygen yields 174.86 of fe and 75.14g of o. what is the empirical formula for this compound?

Select all that apply. using a value of ksp = 1.8 x 10-2 for the reaction pbcl2 (s) pb+2(aq) + 2cl -(aq). the concentration of the products yield a ksp of 2.1 x 10-2:

How many grams are in 68.2 molecules of br2?