26. A student weighs out 5.00 g of potassium iodide to react with an excess of lead II nitrate solution. When the reaction is finished, he weighs out the precipitate to a mass of 5.50 g. Calculate the student's percentage error.

Q: A 1.22 g sample of impure lead nitrate was dissolved in 40.0 mL of distilled water and analyzed by…

A: The balanced reaction is as follows: Pb(NO3)2(aq)+Na2SO4(aq)→PbSO4(s)+2NaNO3(aq)

Q: 2.00 g of limestone was dissolved in hydrochloric acid and all the calcium present in the sample was…

A: Given: The mass of limestone is 2.00 g. The weight of the precipitate is 2.43 g. To find: Percentage…

Q: A chemist needs to determine the concentration of a sulfuric acid solution by titration with a…

A: The question is based on the concept of molarity.Molarity is a method of expressing concentration of…

Q: A chemist needs to determine the concentration of a sulfuric acid solution by titration with a…

A:

Q: KCO3 3. Suppose 36.0246 g of potassium carbonate is dissolved in water to give a final solution…

A: Molarity = Number of mols of solute/Volume of solution in L Number of mols = Mass/Molar mass…

Q: A chemist needs to determine the concentration of a sulfuric acid solution by titration with a…

A: The values are given as follows:

Q: A sample of 7.90 g of Mg(OH)2 is added to 25.6 mL of 0.225 M HNO3. a.) Write the chemical equation…

A: (a) When magnesium hydroxide added with nitric acid, Following balanced Chemical Reaction occurs -…

Q: A sample of 5.26 g of solid calcium hydroxide is added to 32.5 mL of 0.420 M aqueous hydrochloric…

A: Given: Mass of solid Ca(OH)2 taken = 5.26 g. Concentration of HCl = 0.420 M And volume of solution =…

Q: A chemist places 2.9764 g of NaCl in a 100 mL volumetric flask and adds water to the mark and calls…

A: Given, Stock Solution 1 : mass of NaCl = 2.9764 g volume of flask = 100 mL Solution 2 : Volume…

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

A:

Q: By pipet, 19.00 mL  of a 0.823 M stock solution of potassium permanganate (KMnO4) was transferred to…

A: Solutions comprising a definite solute always follows a generalized expression known as "molarity…

Q: A 25.00 mL aliquot of concentrated hydrochloric acid (11.7 M) is added to 175.00 mL of 3.25 M…

A:

Q: 3. When a solution containing silver ions is mixed with another solution containing chloride ions, a…

A:

Q: By pipet, 10.00 mL  of a 0.823 M stock solution of potassium permanganate (KMnO4) was transferred to…

A:

Q: It is desired to prepare exactly 100. mL of sodium chloride solution. If 2.71 g NaCl is weighed out,…

A:

Q: An aqueous solution of propyl alcohol is made by transfering 4.49 mL of liquid propyl alcohol to a…

A: Given: The volume of propyl alcohol taken = 4.49 mL The volume of the solution in the volumetric…

Q: A solution contains an unknown mass of dissolved silver ions. When potassium chloride is added to…

A: Let the solution contain the compound AgX. When KCl is added to the solution, the following reaction…

Q: A solution of potassium permanganate was titrated by adding 28.75 mL of the solution to a solution…

A: The question is based on the concept of quantitative analysis . we need to calculate concentration…

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: A sample of 9.34 g of solid calcium hydroxide is added to 32.0 mL of 0.440 M aqueous hydrochloric…

A:

Q: A chemist needs to determine the concentration of a sulfuric acid solution by titration with a…

A: Answer :-  Molarity of original H2SO4 solution = 1.207 M…

Q: In the laboratory, a student adds 45.1 mL of water to 10.6 mL of a 0.773 M hydrobromic acid…

A: Given : Initial concentration of hydrobromic acid i.e HBr = 0.773 M Initial volume of HBr solution =…

Q: emist needs to determine the concentration of a sulfuric acid solution by titration with a standard…

A: Question is based on the concept of quantitative analysis . we need to calculate concentration of…

Q: 2.135 g of potassium chloride in enough water to make 100.00 mL solution. Th student then pipettes…

A: Molarity = number of moles of solute / volume of solution (in L)  M1V1=M2V2 M1= initial Molar…

Q: A chemist needs to determine the concentration of a sulfuric acid solution by titration with a…

A: Dilution :-  If a solution of molarity M1 and volume V1 is diluted by adding water to a solution of…

Q: 69.0 mL of 2.0 M Sr(OH)2 are mixed with 31.0 mL of 1.8 N Sr(OH)2 . What is the normality of the…

A: Given Sample 1 : Molarity of Sr(OH)2 = 2.0 M , volume = 69 ml Sample 2 : Normality of Sr(OH)2 = 1.8…

Q: Magnesium metal reacts with hydrochloric acid to form aqueous magnesium chloride and hydrogen gas.…

A: The number of moles is equal to the ratio of mass to the molar mass of the substance. It is denoted…

Q: A 0.8910 g sample of a mixture of NaCl and KCl is dissolved in water, and the solution is then…

A: Given : Mass of mixture = 0.8910 gAnd mass of AgCl produced = 1.923 gmolar mass of AgCl = Atomic…

Q: A 0.450 M solution of KCI needs to be prepared through dilution. A 2.00 M stock solution will be…

A: 0.450M solution of KCl is to be prepared, Let it be M1 = 0.450 M 2.0 M of stock solution , Let it…

Q: A sample with a mass of 1.340 g was dissolved in water, releasing chlorine ions. The aqueous…

A: Since the AgCl precipitate is formed by reaction of Ag+ from AgNO3 and Cl- fromt he sample And since…

Q: 221 mL of hydrochloric acid solution is used to react 4.30 g magnesium hydroxide.  Calculate the…

A: The reaction between magnesium hydroxide i.e Mg(OH)2 and hydrochloric acid i.e HCl is HCl + Mg(OH)2…

Q: 20.0 ml of an aqueous magnesium chloride solution and 25.0 ml of an aqueous potassium hydroxide…

A: The reaction can be given as follows: MgCl2(aq)+2KOH(aq)→Mg(OH)2(s)+2KCl(aq) The volume of aqueous…

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

A:

Q: A student soaks willow bark (a natural source of salicylic acid) in ethanol. After a few minutes,…

A:

Q: A chemist needs to determine the concentration of a sulfuric acid solution by titration with a…

A: The reaction between sulfuric acid and sodium hydroxide is as follows. H2SO4+2NaOH→Na2SO4+2H2O That…

Q: Vinegar contains 5.0 g of acetic acid, CH;COOH, in 100.0 mL of solution. Calculate the molarity of…

A:

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.