Chapter 7
Chapter 7
Chapter 7
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- <strong>Chapter</strong> 7 -(c) MgP 2 O 7 Mg 24.31 g 24:31 g2P 61.94 gð100Þ ¼ 12:26% Mg198:3g7O 112.0 g 61:94 g198.3 gð100Þ ¼ 31:24% P198:3g 112:0gð100Þ ¼ 56:48% O198:3g (d) (NH 4 ) 2 SO 4 2N 28.02 g 28:02 g8H 8.064 gð100Þ ¼ 21:20% N132:2gS 32.07 g 4O 64.00 g 8:064 g132.2 gð100Þ ¼ 6:100% H132:2g 32:07 gð100Þ ¼ 24:26% S132:2g 64:00 gð100Þ ¼ 48:41% O132:2g(e) Fe(NO 3 ) 3 Fe 55.85 g 55:85 g3N 42.03 gð100Þ ¼ 23:09% Fe241:9g9O 144.0 g 241.9 g 42:03 gð100Þ ¼ 17:37% N241:9g 144:0gð100Þ ¼ 59:53% O241:9g (f) ICl 3 I 126.9 g 126:9g3Cl 106.4 gð100Þ ¼ 54:39% I233:3g233.3 g 106:4gð100Þ ¼ 45:61% Cl233:3g23. Percent of iron (a) FeO Fe 55.85 g 55:85 gO 16.00 gð100Þ ¼ 77:73% Fe71:85 g71.85 g (b) Fe 2 O 3 2Fe 111.7 g 111:7g3O 48.00 g 159:7g159.7 g (c) Fe 3 O 4 3Fe 167.6 g 167:6g4O 64.00 g 231:6g231.6 gð100Þ ¼ 69:94% Feð100Þ ¼ 72:37% Fe-56-
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