1. How many grams are there in 0.7 mol of Fe(NO3)?
2. How many molecules are there
in 0.06 mol of KI?
3. How many grams are there in
1.806. 1022 molecules of MgCl,
4.0.08 mol of compound X,O,
has mass 11.36 g. What is the
atomic mass of element X? ​

stas20303    2   24.11.2020 10:07    12