题目

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

提问时间：2021-03-14

答案

Fe2+/ 2Cl-Cu2+/ O2-2 Fe3+/ 3S2-Cr3+ / 3Cl-6.60 moles of H8.80 moles of O2.20 moles of P = (2.20)(6.02*10^23) = 1.32 * 10^24 atoms8.80 moles of O = (8.80)(6.02*10^23) = 5.30 * 10^24 atoms(22.99 g/mol N...