A 0.4435-g sample of impure Na2CO3 (FW 105.99) was analyzed by the Volhard method. After adding 50.00 mL of 0.06911 M AGNO3, the sample was back titrated with 0.05781 M KSCN, requiring 23.74 mL to reach the end point. What is the % purity of the Na2CO3 sample?

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Q: STANDARDIZATION OF NAOH SOLUTION A 0.4047 g sample of primary standard grade potassium hydrogen…

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Q: 0.0585 g Na2C2O4 10 mL to adjust KMnO4 solution prepared in 0.1 M' pure water, 2 M H2SO4 added,…

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Q: A 0.1093-g sample of impure Na2CO3 was analyzed by the Volhard Method. After adding 50.00 mL of…

A: Reaction taking place: Na2CO3 + 2AgNO3 →→ Ag2CO3 + 2NaNO3  Reaction of KSCN with excess AgNO3: AgNO3…

Q: For breakfast, the nihilistic Rick Sanchez ate 100 g of cereal mixed with 20 g of milk. A 1.500 g…

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Q: If a 1.25 g sample of magnesium oxide (98.9%) were titrated with 70 ml of 1.04 N of sulfuric acid,…

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Q: The tetraethyl lead Pb(C2H5)4 in a 25.00 mL sample of aviation gasoline was shaken with 15.00 mL of…

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Q: A 0.4126-g sample of primary-standard Na2CO3 was treated with 40.00 mL of dilute perchloric acid.…

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Q: A 0.4140-g sample of impure Na2CO3 (FW 105.99) was analyzed by the Volhard method. After adding…

A: Given that -  Mass of impure Na2CO3 = 0.4140 g  Formula weight of Na2CO3 = 105.99  Volume of AgNO3 =…

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Q: 1. A mixture containing only KCl and NaBr is analyzed by the Mohr Method. A 0.3172-g sample is…

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Q: A 0.1093-g sample of impure Na2CO3 was analyzed by the Volhard Method. After adding 50.00 mL of…

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Q: A 1.223 g sample containing arsenic (As) was converted to H3ASO4 by suitable treatment. 40.00 mL of…

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Q: A sample of primary standard grade K2Cr2O7 (MM = 294.20) weighing 0.2153 g is dissolved, the…

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Q: A 0.1093-g sample of impure Na2CO3 was analyzed by the Volhard Method. After adding 50.00 mL of…

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Q: A 0.4126-g sample of primary-standard Na₂CO₃ was treated with 40.00 mL of dilute perchloric acid.…

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Q: Potassium dichromate is often used to standardize reducing agents like Fe2** Cr207 + 6Fe2+ + 14 H* →…

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Q: 0.7050-g of pure KHP (FW = 204.2) was dissolved and titrated with 35.00mL of NaOH solution. The…

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Q: 4. A 0.5843-g sample of a plant food preparation was analyzed for its N content by the Kjeldahl…

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Q: 2.  A sample of primary standard grade K2Cr2O7 (MM = 294.20) weighing 0.2153 g is dissolved, the…

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Q: The tetraethyl lead, Pb(C2H5)4 in a 25.00 mL sample of gasoline was shaken with 15.00 mL of  0.02095…

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Q: A 0.5131-g sample containing KBr is dissolved in 50 mL of distilled water. Titrating with 0.04473 M…

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