{"id":988,"date":"2019-01-21T07:35:26","date_gmt":"2019-01-21T07:35:26","guid":{"rendered":"https:\/\/blogs.glowscotland.org.uk\/gc\/hchemanswers\/?page_id=988"},"modified":"2019-10-25T11:04:02","modified_gmt":"2019-10-25T11:04:02","slug":"past-paper-questions-unit-3-marking-guide","status":"publish","type":"page","link":"https:\/\/blogs.glowscotland.org.uk\/gc\/hchemanswers\/past-paper-questions-unit-3-marking-guide\/","title":{"rendered":"MARKING GUIDE: Unit  3A1 Excess Calculations &amp; Limiting Reactants"},"content":{"rendered":"<p>&nbsp;<\/p>\n<table style=\"font-size: 16px\">\n<tbody>\n<tr>\n<td width=\"50\">1.<\/td>\n<td>\u00a0D<\/td>\n<td width=\"5\"><\/td>\n<\/tr>\n<tr>\n<td>2.<\/td>\n<td>\u00a0A<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>3.<\/td>\n<td>\u00a0A<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>4.<\/td>\n<td>\u00a0B<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>5.<\/td>\n<td>\u00a0D<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>6.<\/td>\n<td>\u00a0A<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>7.<\/td>\n<td>\u00a0B<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>8.<\/td>\n<td>\u00a0D<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>9.<\/td>\n<td>\u00a0A<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>10.<\/td>\n<td>\u00a0B<\/td>\n<td><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table>\n<tbody>\n<tr>\n<td width=\"50\">11.<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-1008\" src=\"https:\/\/blogs.glowscotland.org.uk\/gc\/public\/hchemanswers\/uploads\/sites\/5342\/2019\/01\/H2006_7mi.png\" alt=\"\" width=\"867\" height=\"133\" 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1024w\" sizes=\"auto, (max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/td>\n<\/tr>\n<tr>\n<td>\u00a013.<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>\u00a0b)<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>\u00a0i)<\/td>\n<td>\u00a0Starch<\/td>\n<\/tr>\n<tr>\n<td>\u00a0ii)<\/td>\n<td>\u00a00.008 mol l<sup>-1<\/sup><\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>\u00a014.<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td>\u00a0<img loading=\"lazy\" decoding=\"async\" class=\"alignleft wp-image-1049\" src=\"https:\/\/blogs.glowscotland.org.uk\/gc\/public\/hchemanswers\/uploads\/sites\/5342\/2019\/02\/Picture5.png\" alt=\"\" width=\"900\" height=\"509\" 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768w\" sizes=\"auto, (max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/td>\n<\/tr>\n<tr>\n<td>\u00a015.<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>\u00a0b)<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>\u00a0i)<\/td>\n<td>\u00a0Starch<\/td>\n<\/tr>\n<tr>\n<td>\u00a0ii)<\/td>\n<td>\u00a00.8 mol l<sup>-1<\/sup><\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td>\u00a0<img loading=\"lazy\" decoding=\"async\" class=\"alignleft size-full wp-image-1700\" src=\"https:\/\/blogs.glowscotland.org.uk\/gc\/public\/hchemanswers\/uploads\/sites\/5342\/2019\/10\/Picture1-4.png\" alt=\"\" width=\"1249\" height=\"1260\" srcset=\"https:\/\/blogs.glowscotland.org.uk\/gc\/public\/hchemanswers\/uploads\/sites\/5342\/2019\/10\/Picture1-4.png 1249w, 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