a 1.42 g sample of pure copmound, with fornula M2SO4, was dissolved in water and treated with an excess of aqeous calcium chloride, resulting in the precipitation of all the sulfate ions as calcium sulfate. the precipitate was collected, dried, and found to weigh 1.36 g. determine the atomic mass of M, and idenitify M

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Q: If 100.0 mL of 0.351 M Na, SO, are added to 100.0 mL of 0.905 M Pb(NO,)2, how many grams of PBSO,…

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Q: 8. When 38.0 mL of 0.1250 M H2S04 is added to 100 mL of a solution of Pbl2, a precipitate of PbSO4…

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Q: A 2.663 g sample contain thiourea (NH,),CS (76.12 g/mol) was extracted into a dilute H,SO, solution…

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Q: 780 mL of 0.0160 M AgNO, from the solid reagent. mL. Dissolve g AgNO, in enough water to give a…

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Q: An unknown copper ore sample (0.4011 g) is titrated using a standardized solution of S2O32- (0.10…

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Q: 3. A sample weighing 640 mg is comprised of 12 % KCI, 8.71 % CaCl,, and inert material. What weight…

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Q: Part A A solution of 0.358 M KOH is used to titrate 13.5 mL of a 0.182 MHPO, solution. What volume,…

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Q: A 35.0-mL sample of 1.00 M KBr and a 60.0-mL sample of0.600 M KBr are mixed. The solution is then…

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Q: What is the final concentration of Na+ in a solution created by mixing 200 mL of 0.40M NaCl with 800…

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Q: What mass of FeSO4.(NH4)2SO4. 6H2O is present in a sample if it is titrated to its equivalence point…

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Q: A solution of NaCl(aq) is added slowly to a solution of lead nitrate, Pb(NO,),(aq), until no further…

A: Reaction taking place:  2NaCl  +  Pb(NO3)2  →  2NaNO3  +  PbCl2 In general 2 moles of NaCl reacts…

Q: A solution of NaCl(aq) is added slowly to a solution of lead nitrate, Pb(NO,),(aq), until no further…

A: Explanation: Calculation of the moles of PbCl_2PbCl2 as:- Mass = 14.20 g Molar mass of…

Q: Titration of a 25.00 mL sample of acid rain required 12.4 mL of 0.009879 M NaOH to reach the end…

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Q: A solution of HCl is prepared for titration of unknown Na2CO3 samples, by standardization with pure…

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Q: A solution of NaCl(aq) is added slowly to a solution of lead nitrate, Pb(NO,),(aq), until no further…

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Q: A solution of 100.0 mL of 0.200 M KOH is mixed with a solutionof 200.0 mL of 0.150 M NiSO4. (a)…

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Q: 0.3043 g of pure KHP was weighed out and titrated to an end point with 15.12 mL of a NaOH solution…

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Q: 18.0 g of a lead containg sample was dissolved water and an excess of sodium sulfate was added to…

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Q: 8. When 38.0 mL of 0.1250 M H2SO4 is added to 100 mL of a solution of PbI2, a precipitate of PBSO4…

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Q: A solution of NaCl(aq) is added slowly to a solution of lead nitrate, Pb(NO,),(aq), until no further…

A: Balanced reaction of Pb(NO3)2 with NaCl Pb(NO3)2(aq) + 2NaCl(aq) ....> PbCl2(s) + 2NaNO3(aq) Mass…

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Q: is the mass of the oxalic acid (diprotic acid) in the sample and what is its mass percent? (0.753 g…

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Q: 87. What is the use of barium hydroxide in the precipitation of standard NaOH solution? a. catalyst…

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