The calcium in a 200.0-mL sample of natural water was determined by precipitating the cation as CaC2O4. The precipitate was filtered, washed, and ignited in a crucible with an empty mass of 26.6002 g. The mass of the crucible plus CaO (56.077

Q: 7. If 8.09 mL of 0.350 M CuSO4.5H2O is mixed with 2.13 mL water, calculate the concentration of Cu2+…

A: When we dilute a concentrated solution with pure water, the mole of solute remains constant in the…

Q: A student weighs out 1.215 g of an impure KHP, dissolves the sample in 100. mL DI water and titrates…

A: kindly find the answer attached

Q: A student wanted to determine the percent of NaOCI in a commercial bleaching solution. He diluted…

A: Given data, Mass of bleach = 5.0g Volume of flask = 100mL=0.1L Volume of sample = 25mL=0.025L…

Q: 4. What is the pereentage purity of a sample of Al, (SO4)3 if a 0.5000-g sample produced a…

A: Given : Mass of Al2(SO4)3 sample = 0.5000 g And mass of BaSO4 precipitated = 1.000 g

Q: An unknown 8.00 ml sample containing a certain concentration of tin Sn*2 (118.7 g/mol), was treated…

A:

Q: In the titration of 10.00 mL sample of vinegar solution with 0.550 M NAOH as titrant, the initial…

A:

Q: Suppose that 0.323 g of an unknown sulfate salt is dissolved in 50 mL of water. The solution is…

A: 1 mole Ba2+ ion react with 1 mole SO42- ion to form 1 mole BaSO4.Precipitation reaction is

Q: A 185.0 mL sample of 1.200 M Pb(NO₃)₂ is mixed with 99.50 mL of 1.500 M NaCl, and the PbCl₂…

A: The balanced chemical equation for the precipitation of lead (II) chloride can be written as:…

Q: An unlabeled salt found in the laboratory was believed to be either LiCl, NaCl, or KCl. Titration of…

A:

Q: of 0.1250 M H2SO4 is added to 100. mL of a solution of Pb(NO3)2, a precipitate of Pb O4 is then…

A: Given data set: 38 ml of 0.1250 M H2SO4 100 ml Pb(NO3)2 Molar mass of PbSO4 = 303 g The chemical…

Q: 69.0 mL of 0.250 M LiCl is added to a 1.000 L volumetric flask and the flask is filled with water.…

A: The dilution formula is as follows:  MiVi = MfVf

Q: A 20.0 mL solution of 0.200 M H;PO4 was fully titrated with 70.0 mL of a solution of calcium…

A: Given : Concentration of H3PO4 = 0.200 M Volume of H3PO4 solution = 20.0 mL And volume of calcium…

Q: An impure sample of potassium hydrogen phthalate (KHP) was titrated to determine the percent…

A: We will use stoichiometry of the reaction to get the answer.

Q: If 20.0 g of LiOH is added to 0.750 L of 1.00 M Cd(NO₃)₂, how many grams of precipitate will be…

A: The balanced equation for this precipitation reaction is: Cd(NO3)2 + 2LiOH → Cd(OH)2 + 2LiNO3 The…

Q: Calculate the % w/w Cl– (35.45 g/mol) in the sample. Provide your answer to 2 places after the…

A:

Q: Consider the reaction: CaCl(aq) + 2AgNO3(aq) -> Ca( NOZ)2(aq) + 2AgC|(s) How many grams of CaCl…

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

Q: 79.0 mL of 0.250 M LiCl is added to a 1.000 L volumetric flask and the flask is filled with water.…

A:

Q: A solution of oxalic acid dihydrate (H2C2O4 * 2H2O) with a known concentration of 0.400 M H2C2O4 *…

A:

Q: A sample consisting of Na2CO3 and NaHCO3, and inert matter weighs 4.9269 grams. It is titrated with…

A: Na2CO3 + HCl = NaHCO3 + NaCl Only 50% of…

Q: 2. A standard solution of FeCls was prepared and its molar concentration was determined to be 2.000…

A: This is one of the dilution problem, here we are changing concentration of solution. In dilution…

Q: A3.00 mL bleach (NaOCI is the active ingredient) sample is mixed with potassium iodide and acid to…

A: Answer: b. 1.5 M

Q: When 38.0 mL of 0.1250 M H2SO4 is added to 100. mL of a solution of PbBr2, a precipitate of PbSO4…

A: Mass of PbSO4 = 0.0471 g Molar mass of PbSO4 =303.28 g/mol Volume of PbBr2 = 100 mL

Q: Vanadic ion, V3+, forms green salts and is a good reducingagent, being itself changed in neutral…

A: Oxidation state of V in V(OH)4+ is +5 and Oxidation state of V in V2(SO4)3 is +3. Given…

Q: In a precipitation titration of 46.00 mL of a chloride solution of unknown concentration, 31.00 mL…

A: In  precipitation titrations, the stoichiometric reaction is a reaction which produces in solution a…

Q: concentration of hydrogen peroxide in a solution is determined by titrating a 10.0-mL sample with…

A: Volume of hydrogen peroxide = 10.0 mlVolume of Ca(MnO4)2 = 16.8 mlMolarity of Ca(MnO4)2 = 0.0620 M

Q: 65.0 mL of 0.250 M LiCl is added to a 1.000 L volumetric flask and the flask is filled with water.…

A:

Q: A 0.4574 g sample containing only NaCN and KCN requires 41.65 ml of 0.1056 M AgNO3 for titration.…

A:

Q: 5.6 A 2.50 g sample of Ag2SO4(s) is added to a beaker containing 0.150 L of 0.025 M BaCl₂. (a) Write…

A: Given ,mass of Volume of Concentration of

Q: A sample contains MgCl2 (95.211 g/mol) and KCl (74.551 g/mol). A 6.3674-g sample was dissolved in…

A: Precipitation refers to formation of product as solid mass that settles at the bottom. Such…

Q: A 1.560 g sample of metal ore was dissolved and the metal (Fw=48.12g/mol) was oxidized to a metal…

A:

Q: You have been provided with a 2.08 x 10-2 L  sample of lithium hydroxide (LiOH) of unknown…

A:

Q: A 0.574-g sample of a chlorocarbon compound was analyzed by burning it in oxygen and collecting the…

A: Given data: Molarity of AgNO3 = 0.28 M Volume of AgNO3 = 26.21 mL Molarity of KSCN = 0.122 M Volume…

Q: 0.753-g sample of a chlorocarbon compound was analyzed by burning it in oxygen and collecting the…

A: Answer:- This question is answered by using the simple concept of stoichiometry which involves the…

Q: A solution of oxalic acid dihydrate (H₂C₂O₄･2H₂O) with a known concentration of 0.400 M H₂C₂O₄･2H₂O…

A: At equivalent point mole to stoichiometry is equal of both reactants

Q: mL of a bleach (NaOCl) sample is diluted to 500 mL. An excessive amount of KI is added to the 20 mL…

A: The question makes use of iodometric titrations in which  indirectly liberated iodine is titrated…

Q: The calcium in a 200 mL sample of water sample was determined by precipitating the cation as CaC2O4.…

A: Solution- The concentration of Ca that is present in water is to be determined in the units of ‘g’…

Q: Write the balanced chemical equation based on the following description: aqueous calcium hydroxide…

A: According to the Law of conservation of mass " all atoms of different elements must be equal on both…

Q: The calcium (40.078 g/mol) in a 500.0 mL sample of natural water was determined by precipitating the…

A: Molar concentration is measure of concentration of chemical species, in particular of a solute in a…

Q: A 0.750 g sample of finely ground limestone was placed in an Erlenmeyer flask, and 25.00 ml of 1.00…

A: Mass of sample = 0.750 g Initial molarity of HCl = 1 M Initial volume of HCl = 25 mL or 0.025 L…

Q: a student weights out 1.118 g of impure KHP, dissolves the sample in deionized water and titrates it…

A: %Purity = 100 x (Mass of pure KHP/Mass of impure sample) So, Number of mol of NaOH = Number of mol…

Q: A 6.07-g sample containing magnesium chloride (95.211 g/mol) and sodium chloride (58.44 g/mol) was…

A: Given the mass of Mg2P2O7(s) formed after complete ignition of the precipitate = 0.5412  Molar mass…

Q: In the laboratory you are given the task of separating Ag+ and Co2+ jons in aqueous solution. For…

A: For separation of two ions from aqueous solution we have to use such salts which selectively forms…

Q: 2.00 mL of 0.200 M Fe(NO3)3 were mixed with 3.00 mL of 0.152 M NaSCN and 3.00 mL of HNO3. The…

A:

Q: When 50.0 mL of a 0.3000 M AgNO3 solution is added to (4.65x10^1) mL of a solution of MgCl₂, an AgCl…

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.