Vanadic ion, V3+, forms green salts and is a good reducingagent, being itself changed in neutral solutions to thenearly colorless ion V(OH)4+. Suppose that 15.0 mL of a0.200-M solution of vanadic sulfate, V2(SO4)3, was neededto reduce completely a 0.540-g sample of an unknownsubstance X. If each molecule of X accepted just oneelectron, what is the molecular weight of X? Suppose thateach molecule of X accepted three electrons; what wouldbe the molecular weight of X then?

Q: Calculate

A:

Q: What volume of \\(0.340\\) M \\(\ce{KOH}\\) is needed to react completely with \\(15.7\\) mL of…

A: Molarity is defined as “the mole of the solute per unit volume of the solution”. It is represented…

Q: percent NaOH

A:

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 reaction is made up in the following way: 12 ml of 4.1 M acetone + 19 mL of 1.2 M HCI + 19 ml of…

A: Given: The total volume of the solution, (V1) =( 12 + 19 + 19 + 17 ) mL. The concentration of I2…

Q: How many grams of PbBr2 will precipitate when excess BaBr2  solution is added to 78.0 ml of 0.524 M…

A: Recall the reaction that will occur here PbNO32 + BaBr2 →PbBr2 + BaNO32 Given that 78.0 ml of 0.524…

Q: with

A: 4FeCl2(aq)+3O2 (g)--> 2Fe 2O 3(s) +4Cl2(g),   FeCl2 = 0.945 M O2 = 4.32 x 1021 molecules

Q: A student is asked to perform a neutralization reaction between hydrochloric acid, HCl and sodium…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: What mass of NaOH is needed to precipitate the Cd2+ ions from 37.0 mL of 0.500 M Cd(NO3)2 solution?

A: Given:Volume of Cd(NO3)2 solution = 37.0 mL = 0.037 L.Molarity of Cd(NO3)2 solution = 0.500 M.

Q: The solubility of magnesium hydroxide, Mg(OH)2, in water is 9.0 x 10 4 g/100 mL. What volume of…

A: The equation for the above process is written as: Mg(OH)2+HNO3---------->Mg(NO3)2+H2O. Now,…

Q: Q3. 1.5g of 0.1M NaCl has been prepared in 1L and only 25 of NaCl solution has been used to titrate…

A: Introduction: Percentage yield if the ratio between the actual yield of chemical species to the…

Q: Suppose that 0.3562 g of Na:C:04 is dissolved in a 250.0-mL volumetric flask. If 10.00 ml of this…

A: Given,

Q: The balanced equation for the neutralization reaction of aqueous H2SO4 with aqueous KOH is shown.…

A: Balanced Reaction H2SO4 (aq) + 2KOH(aq) ---> K2SO4 (aq) + H2O(l)  Given Data Volume of H2SO4 =…

Q: 50mL of a 0.6M Pb(NO,), is mixed with an excess of Nal solution. What mass of precipitate would you…

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

Q: How many grams of PbBr2 will precipitate when excess AlBr3 solution is added to 66.0 mL of 0.754 M…

A: Given: Concentration (molarity) of Pb(NO3)2 = 0.754 M  Volume of Pb(NO3)2 = 66.0 mL molar mass of…

Q: 10 mL of 0.6M NiSO4 is mixed with 20 mL of 0.3 M CuSO4 . calculate the molarity of Ni2+, Cu2+ and…

A: [Ni2+ ] = 0.2M [Cu2+]= 0.2 M [ SO42-] = 0.4 M

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A: A question based on quantitative analysis, which is to be accomplished.

Q: What volume of 0.100 M NAOH is required to precipitate all of the nickel (II) ions from 150.0 mL of…

A: Reaction for the above query will be :  2NaOH(aq) + Ni(NO3)2 (aq) ------> 2NaNO3(aq) + Ni(OH)2(s)…

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A: We should equal equivalent of both acid and Fe+3 ion to get mass of oxyliac acid  Equivalent =…

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Q: A titration of a 0.7879g sample potassium hydrogen phthalate, KHP (GFW= 204.23g/mole), required…

A:

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: When 6.881 g of MgCl2 and NaCl mixture is dissolved in 500 mL of distilled water and 50 mL of AgNO3…

A: step: 1 of 8 In a given problem,  contains, therefore,  is produced by. Thus, the moles of  can be…

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…

A: Given:  Volume of H2SO4  solution = 38 ml  Molarity of H2SO4 solution = 0.1250 M  Volume of PbI2…

Q: What volume of 0.416 M mg(no3)2 should be added to 255ml of 0.102M KNO3 to produce a solution with a…

A: Given, Concentration of Mg(NO3)2 = 0.416M. Volume of KNO3 = 255mL. Concentration of KNO3 = 0.102M.…

Q: With 85% H2SO4 by volume in water being used in the reaction, how many moles of water will be added…

A: 85% volume of H2SO4 means 85 ml H2SO4 in 100 ml Solution. And remaining 15 % is water, that is 15 ml…

Q: If 25.2 mL of AgNO3 is needed to precipitate all the Cl ions in a 0.775-mg sample of KCI (forming…

A:

Q: A solution is prepared by pipetting 25.0 mL of 0.350 M CuCl2 into a 100.0 mL volumetric flask,…

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Q: Fe3+ in 50 mL solution, which is known to contain Fe3+, was precipitated as Fe(OH)3 and after…

A: Given that V = 50.0 mL Mass of Fe2O3 = 0.3994 g

Q: How many grams of Ni(OH)2Ni(OH)2 are produced from the reaction of 27.0 mLmL of a 1.95  M NaOH M…

A:

Q: When 38.0 mL of 0.1250 M H2SO4 is added to 100 mL of a solution of PbI2, a precipitate of PbSO4…

A: Given: Concentration of H2SO4 = 0.1250 M Volume of H2SO4 solution = 38.0 mL = 0.038 L…

Q: What is the mass in grams of precipitate formed when 250.0 mL of 0.100 M ZnCl₂ is mixed with excess…

A:

Q: In a double replacement precipitation reaction, KCl reacts with Pb(NO3)2 in a 2:1 mole ratio,…

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Q: Question attached

A: The balanced equation for the reaction between KHP and NaOH is: C8H5KO4 + NaOH → C8H4KO4-Na+ + H2O

Q: What volume (in mL) of 4.35 M HCl solution is needed to react with 18.5 g of CaO2H2?

A: Given data contains, Molarity of HCl is 4.35M. Mass of CaOH2 is 18.5 g. The chemical equation is…

Q: Whaf is thr molarity of NO3- in a solution made by dissolving 12.59 grams of Fe(NO3)3 to make 50.00…

A: In the given solution 12.59 grams of Fe(NO3)3 is dissolved in 50.00 mL of solution.

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A: Answer :- Molar Concentration of sulfate SO42- ion in solution B = 0.015 M…

Q: the

A:

Q: If 26.2 mLmL of AgNO3AgNO3 is needed to precipitate all the Cl−Cl− ions in a 0.780-mgmg sample of…

A: Number of moles of KCl can be calculated as shown below:

Q: 6. The purity of a sample of sodium oxalate, Na2C2O4, is determined by titrating with a standard…

A:

Q: A certain brand of vinegar is analyzed for its acetic acid content by titration with 0.2 moles/liter…

A:

Q: What volume of 0.416M Mg(NO3)2 should be added to 255 mL of 0.102 M KNO3 to produce a solution with…

A:

Q: How many grams of solid of LiCl (MW 42.471 g/mol) would be left behind if 28.807 mL of 0.550 M KCl…

A:

Q: Consider the following balanced equation: 2KMnO<(aq) + 10KI(аq) + 8H:SO{(aq) — 6K:SО4(аq) +…

A:

Q: A student is titrating a vinegar solution to determine the acetic acid (HC2H3O2) content. They add…

A: We can solve this question using the equation,  M1V1 = M2V2

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A: Mass of sample = 0.6113 g Mass of mixture of Al(C9H6NO)3 and Mg(C9H6NO)2 = 7.8154 g Mass of mixture…