I have the same question and cant still answer it so I need the answers
1.d
2.g
3.j
4.i
5.c
6.h
7.e
8.b
9.a
10.f
PE, GO, XY - I am probably wrong xoxoxoxoxxo
one mole of P weights about 31 grams
in one mole there are 6.022*10^23 atoms
we use the rule of threes
6.022*10^23atoms......weight..........31 grams
3.45*10^23 atoms.........weight...........x grams
x=(3.45*10^23*31)/6.022*10^23
x=106.95/6.022=<u><em>17.76 grams</em></u>
