2.00 g calcium tablet sample is determined by precipitating CaC2O4, dissolving this in acid, and titrating the oxalate with 0.0200 M KMnO4. The formula reaction is 5 H2C2O4 + 2 MnO4- + 6 H+ ->10 CO2 + 2 Mn2+ + 8 H2O What percent of CaO is in the sample, if 35.6 ml KMnO4 is required for the titration?

Q: A titration is set up so that NaOH is in a buret and 25.0 mL of HBr soln is in a flask. TheNaOH has…

A: Given, molarity of NaOH MNaOH =0.250 Mvolume of NaOH solution VNaOH =36.3 mLvolume of HBr solution…

Q: A 24.0 mL sample of 0.419 M hydrocyanic acid was neutralized with 0.384 M strontium hydroxide…

A: The chemical reaction :  Sr(OH)2 + HCN ---> H2O + Sr(CN)2   Volume of HCN = 24.0 ml  Molarity of…

Q: 5 Consider the following chemical equation: H₂A RbOH() Rb Ag+ H₂O A0.126 mol sample of impure…

A: We know that, At equivalence point the number of moles of H+ ions is equal to the number of moles of…

Q: How many grams of Ag2CrO4 will precipitate if excess K2CrO4 (aq) is added to a 41.5 mL of 0.816M…

A: Ag2NO3 is limiting reactant. and K2CrO4 is given in excess...

Q: Suppose you are titrating a solution of sodium oxalate, which has a molar mass of 134 g/mol, with a…

A: No of moles of KMnO4 = Molarity x Volume in L                                       = 0.0375 mol/L x…

Q: 2) A 50.0 mL sample of phosphoric acid, H,PO₁, is titrated with 42.50 mL of 0.250 M NaOH. What is…

A: Since you have asked multiple questions, we will solve the first one for you. Kindly repost 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: Barium (Ba) can be analyzed in solutions by forming BaSO4 (s) precipitate. Ba (2+) + SO4(2-) -->…

A: The amount of Ba2+ ions in the sample of barium compound is unknown and is to be calculated to…

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

A:

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: None

A: Balanced chemical reaction is:IO3−​+6H++6S2​O32−​→3S4​O62−​+I−+3H2​O Given data - Volume of : 10 mL-…

Q: 100.0 mL of 0.60 M aqueous Pb(NO3)2 is mixed with excess aqueous Kl. What is the chemical formula of…

A: Given :-  Molar concentration of Pb(NO3)2 solution = 0.60 M  Volume of Pb(NO3)2 solution = 100.0 mL…

Q: Consider the following chemical reaction. 3 Zn(C₂H₂O₂)₂(aq) + 2 Na PO (aq) →→ 6 NaC₂H₂O₂(aq) + Zn…

A: Answer:In this problem, we have to calculate the mass of zinc phosphate by using stoichiometric…

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: Ca(C2H302)2 + LizCO32LiC,H;O2+ CaCO3 Which of the following would precipitate out of the reaction?

A: The solid formed is called the precipitate. In case of an inorganic chemical reaction leading to…

Q: What is the nickel ion concentration in a solution prepared by mixing 381 mL of 0.395 M nickel…

A:

Q: What compound, if any, will precipitate if when 50 ml of 1.0x10─5 M Sr(OH)2 is added to 75 ml of…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

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

A:

Q: I want to know the source of this question( The name of the book with the edition) QI/ The calcium…

A: The determination of the concentration of a substance/ion in a solution has great significance in…

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: 2- In the analysis of a sample for KH2PO4 content, a sample weighing 0.4329 g required 25.08 mL of…

A:

Q: What mass precipitate will form if 0.300 L of 0.190 M Nal is mixed with excess Pb(ClO3)2?…

A:

Q: What is the molarity of the sodium sulfate in the solution resulting from the addition of 100. mL of…

A: It is one of the most widely used unit of concentration and is denoted by M. It is defined as no. of…

Q: The concentration of HCl can be determined by titration with a primary standard such as sodium…

A: First calculate the moles of Na2CO3: moles of Na2CO3 = Mass/Molar mass = 0.421g/(106gmol-1) = 3.97 ×…

Q: in the reaction Ba(NO3)2+H2SO4 =BaSO4+2HNO3 how many grams of Ba(NO3)2 are required to precipitate…

A: The answer to the following question is-

Q: A solution contains 0.0430 M Ca2+ and 0.0970 M Ag+. If solid Na3PO4 is added to this mixture, which…

A: The objective of this question is to determine which of the phosphate species would precipitate…

Q: According to the following reaction what mass is PbCl2 in grams can form from 175 mL of 0.110 M KCl…

A:

Q: Utilizing the molarity equation, calculate the concentration of Potassium Hydrogen Phthalate (KHP)…

A:

Q: Given the precipitation reaction: R Ba(OH), (aq) + K,SO, (a4) ksp - [P] [R] R → BaSO, (s) + 2KOH(aq)…

A: Ksp is the very important parameter to know whether the salt will be precipitated or not .

Q: What is the mass in grams of precipitate formed when 250.0 mL of 0.400 M ZnCI, is mixed with excess…

A: Given-> Volume of ZnCl2 = 250.0 ml Molarity of ZnCl2 = 0.400 M

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: Suppose you are titrating a solution of sodium oxalate, which has a molar mass of 134 g/mol, with a…

A: Number of moles of potassium permanganate should be equal to sodium oxalate at  the equivalence…

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: Determine the mass, in grams, of precipitate that forms when 608, ml. of 0.499 M Na₂CO, reacts with…

A: The question is based on the concept of reaction stoichiometry. we need to calculate mass of calcium…

Q: You are preparing standard acid and base solutions for the laboratory, using potassium hydrogen…

A: When solutions are prepared for particular for titrations, it order to confirm the concentration of…

Q: What mass of Fe(OH)3 will be obtained when 100. mL of 0.240 M FeClz is mixed with 200. mL of 0.182 M…

A:

Q: 835. mL of 0.749 M KOH(aq) is mixed with 387. mL of 0.587 M NISO4(aq). Calculate the mass (g) of the…

A: Dear student,  As you have asked multiple question but according to guidelines we will solve first…

Q: AGNO3 + Cacl --> AgCI + Ca(NO3)2

A: The given unbalanced chemical equation is : AgNO3 + CaCl2 ---------> AgCl + Ca(NO3)2  This…

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:

Q: to 70 ml of 0.2M Pb solution (NO3) 2 add 30 ml of 0.7 M KIO3 solution. a) Write the equation of the…

A: Solubility product   It is the product of concentration term of ions dissociated from the sparingly…