When an sample of impure potassium chloride (0.4500g) was dissolved in water and treated with an  excess of silver nitrate, 0.8402 g of silver chloride was precipitated. Calculate the percentage KCl in the original  sample.

Q: A 12.4 g sample of an aqueous solution of nitric acid contains an unknown amount of the acid. If…

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Q: A 21.25g mixture of the solid salts, sodium chloride and lead (11) nitrate , is added to distilled…

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Q: Suppose 74.0 mL of 0.370 M CoCl2  solution is added to 35.0 mL of 0.820 M NiCl2 solution. Calculate…

A: The molarity of CoCl2 solution is = 0.370 M The volume of CoCl2 solution is = 74.0 mL The molarity…

Q: Suppose 23.0 mL of 0.190 M CoCl₂ solution is added to 26.0 mL of 0.430 M NiCl₂ solution. Calculate…

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Q: A 0.660 M solution of KCl needs to be prepared through dilution. A 2.00 M stock solution will be…

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Q: Calculate the volume (mL) of 1.0 M metal nitrate solution required to prepare 5.0 g of the COPPER…

A: The balanced chemical equation is, Cu(NO3)2 ---> Cu2+ + 2NO3- From this reaction we can conclude…

Q: Suppose 63.5g of copper(II) acetate is broken down in 350. mL of a 0.70 M solution of sodium…

A: Answer:Molar concentration of any ion in solution is:Molar mass of copper acetate is 181.63g/mol

Q: 0.8838-g sample of an ionic compound containing bromide ions and an unknown metal cation is…

A: Weight of ionic compound = 0.8838 gm Weight of precipitate (AgBr) = 1.573 gm

Q: A student was given a 3.708-g sample of a mixture of potassium nitrate and potassium bromide and was…

A: Given ; Mass of sample = 3.708 g Mass of AgBr precipitate formed = 2.957 g And the sample contains…

Q: Zinc is determined by precipitating and weighing as Zn2Fe(CN)6. a) What weight of zinc is contained…

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Q: A 25.0-g sample of garden compost was analyzed for chloride content. The sample was dissolved in…

A: Given,  Mass of garden sample = 25.0 g  Mass of dried precipitate = 1.58 g

Q: Calculate the mass (g) of MgCO3 precipitated by mixing 10.00 mL of a 0.200 M Na2CO3 solution with…

A: The chemical reaction between Na2CO3 and Mg(NO3)2 is shown below.

Q: What mass of Na2 CrO4 is required to precipitate all of the silver ions from 85.0 mL of a 0.300 M…

A: Given : molarity of AgNO3 solution = 0.300 M or 0.300 mol/L  Volume of AgNO3 solution = 85.0 mL  To…

Q: A 0.430 M solution of KCl needs to be prepared through dilution. A 2.00 M stock solution will be…

A: To calculate the volume of the 2.00 M stock solution needed to prepare a 0.430 M solution of KCl,…

Q: What mass of precipitate is produced when 130.0 mL of 0.150 M Cu(NO3)2 is mixed with 150.0 mL of…

A: Precipitation reaction is a double displacement reaction in which two soluble salts reacts with each…

Q: A 5.0mL sample of a stock solution of concentrated HNO3, a strong acid, is diluted with distilled…

A: The ratio of moles of solute to the volume of solution in liters is known as molarity.

Q: Hard water often contains dissolved Ca2+ and Mg2+ ions. One way to soften water is to add…

A: Given information:Volume of solution = 1.5 LConcentration of the Ca2+ present in the solution =…

Q: What mass of iron(III) hydroxide precipitate can be produced by reacting 76.0 mL of 0.290 M…

A: Answer:When two solutions of different substances are mixed and formation of precipitate takes place…

Q: A solution of NaCl(aq) is added slowly to a solution of lead nitrate, Pb(NO3)2(aq), until no further…

A: The reaction of NaCl and Pb(NO3)2 – 2NaCl + PbNO32 →PbCl2 s+ 2NaNO3

Q: A 0.7011-g mixture of sodium chloride and sodium nitrate is completely dissolved in water. When…

A: GIVEN: Mass of mixture of sodium chloride and sodium nitrate =0.7011 g mass of solid precipitate=…

Q: A solution is prepared by adding 2.0 g of solid CaBr2 and 1.55g of NaBr to 100.ml of 0.15 M AlBr3.…

A: Given, A solution is prepared by adding 2.0 g of solid CaBr2 and 1.55g of NaBr to 100.ml of 0.15 M…

Q: A sample of 0.6760 g of an unknown compound containing barium ions (Ba) is dissolved in water and…

A: Introduction The mass percentage of any particular compound can be calculated by simply applying the…