api/api/services/docling/results/b1_rapid/b1-aqa-chemistry-7405-1-2022jun/p15.json

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"hyperlink": null}, {"self_ref": "#/texts/2", "parent": {"$ref": "#/groups/0"}, "children": [], "content_layer": "body", "meta": null, "label": "text", "prov": [{"page_no": 15, "bbox": {"l": 105.2826639811198, "t": 774.441151936849, "r": 451.9966634114583, "b": 761.7092946370443, "coord_origin": "BOTTOMLEFT"}, "charspan": [0, 69]}], "orig": "The pH of a barium hydroxide solution is lower at 50 \u00b0C than at 10 \u00b0C", "text": "The pH of a barium hydroxide solution is lower at 50 \u00b0C than at 10 \u00b0C", "formatting": null, "hyperlink": null}, {"self_ref": "#/texts/3", "parent": {"$ref": "#/groups/0"}, "children": [], "content_layer": "body", "meta": null, "label": "text", "prov": [{"page_no": 15, "bbox": {"l": 113.73910522460938, "t": 750.6750183105469, "r": 495.9701741536458, "b": 726.0600992838541, "coord_origin": "BOTTOMLEFT"}, "charspan": [0, 122]}], "orig": "At 50 \u00b0C a 25 cm? sample of this barium hydroxide solution was neutralised by 22.45cm3ofhydrochloricacidaddedfromaburette.", "text": "At 50 \u00b0C a 25 cm? sample of this barium hydroxide solution was neutralised by 22.45cm3ofhydrochloricacidaddedfromaburette.", "formatting": null, "hyperlink": null}, {"self_ref": "#/texts/4", "parent": {"$ref": "#/groups/0"}, "children": [], "content_layer": "body", "meta": null, "label": "text", "prov": [{"page_no": 15, "bbox": {"l": 113.73910522460938, "t": 714.6014302571615, "r": 535.7154134114584, "b": 676.8302612304688, "coord_origin": "BOTTOMLEFT"}, "charspan": [0, 168]}], "orig": "Deduce the volume of this hydrochloric acid that should be added from a burette to neutralise another 25 cm3 sample of this barium hydroxide solution at 10 \u00b0C [2 marks]", "text": "Deduce the volume of this hydrochloric acid that should be added from a burette to neutralise another 25 cm3 sample of this barium hydroxide solution at 10 \u00b0C [2 marks]", "formatting": null, "hyperlink": null}, {"self_ref": "#/texts/5", "parent": {"$ref": 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633.1175537109375, "r": 355.1704508463542, "b": 619.5369262695312, "coord_origin": "BOTTOMLEFT"}, "charspan": [0, 11]}], "orig": "= 22.45 cm3", "text": "= 22.45 cm3", "formatting": null, "hyperlink": null}, {"self_ref": "#/texts/8", "parent": {"$ref": "#/groups/0"}, "children": [], "content_layer": "body", "meta": null, "label": "text", "prov": [{"page_no": 15, "bbox": {"l": 435.0837809244792, "t": 632.6931762695312, "r": 495.12451171875, "b": 619.9613037109375, "coord_origin": "BOTTOMLEFT"}, "charspan": [0, 11]}], "orig": "< 22.45 cm3", "text": "< 22.45 cm3", "formatting": null, "hyperlink": null}, {"self_ref": "#/texts/9", "parent": {"$ref": "#/groups/0"}, "children": [], "content_layer": "body", "meta": null, "label": "text", "prov": [{"page_no": 15, "bbox": {"l": 115.43039957682292, "t": 594.9219970703125, "r": 216.06201171875, "b": 580.9169514973958, "coord_origin": "BOTTOMLEFT"}, "charspan": [0, 19]}], "orig": "Explain your answer", "text": "Explain your answer", "formatting": null, "hyperlink": null}, {"self_ref": "#/texts/10", "parent": {"$ref": "#/groups/0"}, "children": [], "content_layer": "body", "meta": null, "label": "text", "prov": [{"page_no": 15, "bbox": {"l": 47.77887980143229, "t": 480.33530680338544, "r": 103.16855875651042, "b": 464.20827229817706, "coord_origin": "BOTTOMLEFT"}, "charspan": [0, 4]}], "orig": "04.4", "text": "04.4", "formatting": null, "hyperlink": null}, {"self_ref": "#/texts/11", "parent": {"$ref": "#/groups/0"}, "children": [], "content_layer": "body", "meta": null, "label": "text", "prov": [{"page_no": 15, "bbox": {"l": 114.16192626953125, "t": 478.63771565755206, "r": 521.3394775390625, "b": 453.59840901692706, "coord_origin": "BOTTOMLEFT"}, "charspan": [0, 95]}], "orig": "State how a buffer solution can be made from solutions of potassium hydroxide and ethanoicacid.", "text": "State how a buffer solution can be made from solutions of potassium hydroxide and ethanoicacid.", "formatting": null, "hyperlink": null}, {"self_ref": "#/texts/12", "parent": {"$ref": "#/groups/0"}, "children": [], "content_layer": "body", "meta": null, "label": "text", "prov": [{"page_no": 15, "bbox": {"l": 114.58474731445312, "t": 441.71535237630206, "r": 514.9971516927084, "b": 429.40789794921875, "coord_origin": "BOTTOMLEFT"}, "charspan": [0, 80]}], "orig": "Give an equation for the reaction between potassium hydroxide and ethanoic acid.", "text": "Give an equation for the reaction between potassium hydroxide and ethanoic acid.", "formatting": null, "hyperlink": null}, {"self_ref": "#/texts/13", "parent": {"$ref": "#/groups/0"}, "children": [], "content_layer": "body", "meta": null, "label": "text", "prov": [{"page_no": 15, "bbox": {"l": 113.3162841796875, "t": 418.79799397786456, "r": 518.3797200520834, "b": 393.75868733723956, "coord_origin": "BOTTOMLEFT"}, "charspan": [0, 90]}], "orig": "State how this buffer solution resists changes in pH when a small amount of acid is added.", "text": "State how this buffer solution resists changes in pH when a small amount of acid is added.", "formatting": null, "hyperlink": null}, {"self_ref": "#/texts/14", "parent": {"$ref": "#/groups/0"}, "children": [], "content_layer": "body", "meta": null, "label": "text", "prov": [{"page_no": 15, "bbox": {"l": 484.1311442057292, "t": 393.33428955078125, "r": 535.7154134114584, "b": 378.90484619140625, "coord_origin": "BOTTOMLEFT"}, "charspan": [0, 9]}], "orig": "[3 marks]", "text": "[3 marks]", "formatting": null, "hyperlink": null}, {"self_ref": "#/texts/15", "parent": {"$ref": "#/groups/0"}, "children": [], "content_layer": "body", "meta": null, "label": "text", "prov": [{"page_no": 15, "bbox": {"l": 114.58474731445312, "t": 366.59739176432294, "r": 250.31060791015625, "b": 355.56313069661456, "coord_origin": "BOTTOMLEFT"}, "charspan": [0, 23]}], "orig": "Howbuffersolutionismade", "text": "Howbuffersolutionismade", "formatting": null, "hyperlink": null}, {"self_ref": "#/texts/16", "parent": {"$ref": 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