Q.express as an ion

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Q.express as an ion
1.FeCl2
2.CuO
3.Fe2S3
4.CrCl3
Q.Calculate each of the following quantities in 2.20 moles H3PO4
1.moles of H
2.moles of O
3.atoms of P
4.atoms of O
Q.Calculate the number of grams in each of the following
1.1.50moles of Na
2.3.05moles of Ca
3.0.145moles of Sn
4.1.40mole of Cu

Fe2+/ 2Cl-
Cu2+/ O2-
2 Fe3+/ 3S2-
Cr3+ / 3Cl-
6.60 moles of H
8.80 moles of O
2.20 moles of P = (2.20)(6.02*10^23) = 1.32 * 10^24 atoms
8.80 moles of O = (8.80)(6.02*10^23) = 5.30 * 10^24 atoms
(22.99 g/mol Na) * (1.50 mol) = 34.5g Na
(40.08 g/mol Ca) * (3.05 mol) = 122.2g Ca
(118.69 g/mol Sn) * (0.145mol) = 17.2g Sn
(63.55g/mol Cu) * (1.40mol) = 89.0g Cu (remember the .0 or your software will consider it incorrect)

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