A. calculate the volume of standardized 0.01 M KMNO4(aq). Needed to completely react with ~0.125 g of the solution of potassium ferrioxalate 1M.

Q: A 40.0 mL volume of 1.80 Fe(NO3)3 is mixed with 21.5 mL of 0.808 M Fe(NO3)3 solution. Calculate the…

A: Given, A 40.0 mL volume of 1.80 Fe(NO3)3 is mixed with 21.5 mL of 0.808 M Fe(NO3)3 solution, i.e.…

Q: The protein content of wheat flour can be determined reasonably accurately by multiplying the…

A: Kjeldahl method is used for protein's quantitative analysis.

Q: A 0.5123g sample (molar mass 204.23g/mol) of KHP was dissolved in about 25 mL of distilled water and…

A: Potassium hydrogen phthalate, KHP reacts with sodium hydroxide, NaOH as below.As per the…

Q: 25.0 mL aliquots of a 0.106 mol/L Sn2+(aq) solution was used to standardize an acidified potassium…

A: Titrations are carried out in chemical laboratories to discover concentration of unknown solutions…

Q: A sample of copper oxide weighing 2.013 g is dissolved in acid, the pH adjusted, and excess KI…

A: The solution of the question is given below:

Q: 32.23 mL volume of 1.21 M Fe(NO3)3 is mixed with 45.4 mL of 0.75M Fe(NO3)3 solution. Calculate the…

A: Given, Note: 1000 mL = 1 L Solution -I Concentration of Fe(NO3)3 solution = 1.21 M = 1.21 mol/L…

Q: A sample of iron ore weighing 0.2812 g was dissolved in an excess of a dilute acid solution. All the…

A: The volume of the given solution is 21.70 mL which is equal to 0.0217 L. The number of moles of…

Q: Calculate the total mass, in kilograms, of arsenic in the lake that the company will have to remove…

A: Sample of water : 178.9 ng Density of water : 1.0 g/cm Volume of water : 0.350 km3  1) First of all…

Q: A 0.4334 g sample of canned tuna was analyzed by the Kjeldahl method; 24.61 mL of 0.1180 M HCl were…

A:

Q: Complete and balance the following equation. (All stoichiometric coefficients must be integers.)…

A: A chemical reaction in which the number of atoms present on the left hand side of the equation is…

Q: A 1.0 g sample of a substance of unknown molar mass requires 40 ml of standard solution for…

A:

Q: 25 mL of a bleach (NaOCl) sample is diluted to 500 mL. An excessive amount of KI is added to the 20…

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

Q: Calculate the concentration of CO32- in an aqueous solution of 0.123 M carbonic acid, H,CO3 (aq).…

A: Given initial molarity of H2CO3 = 0.123 M  Concentration of CO32- = [CO32-] = ? Acid dissociation…

Q: 19- A sample of limestone is titrated for its value as a neutralizing agent. A sample weighing 1.000…

A: Limestone is CaCO3 Moles of CaCO3 = 1 / 100 = 0.01

Q: What volume of 0.825 M MnO4– is needed to completely react with 50.0 mL of 0.502 M Fe(II)?

A:

Q: How many grams of nickel (II) phosphate (366.02 g/mol) will precipitate if excess sodium phosphate…

A: The balanced equation for the reaction is given below.

Q: The amount of I, (aq) in a solution can be determined by titration with a solution containing a…

A:

Q: What weight of KCN is equivalent to 30.00 mL of AgNO3 solution containing 15.00 g/liter (b) by the…

A: Solution                            Given that Here weight of KCN is equivalent to 30.00 mL of AgNO3…

Q: The zinc content of a 1.42 g ore sample was determined by dissolving the ore in HCI, which reacts…

A: Given, mass of ore sample = 1.42 g.   The ore was dissolved in 150 mL of 0.600 M HCl, and the…

Q: 2.5 g sample of impure mercury (II) oxide, in excess of potassium iodide is being resolved. HgO(k)…

A:

Q: What mass of Al(OH)3 would be produced if 350.0 mL of 0.4500 M KOH were added to a solution…

A:

Q: 1. 50.05 mL of 0.4530 M KOH solution to completely to titrate 125.00 mL of sulfuric acid solution…

A: As per our guidelines, we are supposed to answer only one question. Kindly repost other question as…

Q: How many grams of PBSO4 is expected to form when 25 mL of 0.15M Pb(N03)2 reacts with excess NazSO4?

A: Since you have posted multiple questions, we are entitled to answer the first only.

Q: 5 ml of substance (A) is titrated with 38 ml of 0.1 M of substance (B). if the legal minimum percent…

A: Volume of A = 5 mlVolume of B = 35 mlMolarity of B = 0.1 Mdensity of A = 19/mlMo.wt of A = 61…

Q: All arsenic in the mineral containing 20 g of arsenic is dissolved by converting it into As3+.…

A: Working formula Decinormal = one tenth of normality = 0.1 N Normality = Molarity*no of equivalents…

Q: A certain solution of KMnO4 is being prepared to treat water and has a concentration of 14.50%…

A: Given: The solution of KMnO4 = 14.50 %(m/V).........(1).

Q: A 0.917-g sample of canned tuna was analyzed by the Kjeldahl method. A volume of 20.59 mL of 0.1249…

A:

Q: The amount of ozone in a mixture of gases can be deter- mined by passing the mixture through an…

A: Given: Total volume of gaseous mixture = 53.2 L Temperature of gas = 18 oC And pressure of gases =…

Q: A dried sample of commercial salt was prepared by a coning and quartering. A 0.837-g sample of the…

A:

Q: A 280.5 mg sample containing only Pb3O4and inert matter gives a precipitate of PbSO4 weighing 381.5…

A: Given as The sample contains Pb3O4 as 280.5 mg The precipitate of PbSO4 weighing 381.5 mg The purity…

Q: What mass of solid Lanthanum (III) oxalate nonahydrate { Laz ( C2O4 )3 · 9 H2O } can be obtained…

A: Given data: The volume of the aqueous solution of LaCl3 = 650 mL = 0.650 L. The molarity of the…

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

A:

Q: Exactly 0.2220 g of pure Na2CO3 was dissolved in 100.0 mL of 0.0731 M HCl.   (a) What mass in grams…

A: First of all we need to find the limiting reagent by considering the balanced reaction. When we…

Q: What mass of solid Lanthanum (III) oxalate nonahydrate { La2( C2O4 )3 · 9 H2O} can be obtained from…

A: Solution -  “Since you have asked multiple question, we will solve the first question for you. If…

Q: What volume of 0.100 M Na3PO4 is required to precipitate all the lead (II) ions from 350.0mL of…

A: The given reaction is,

Q: 5 ml of substance (A) is titrated with 38 ml of 0.1 M of substance (B). if the legal minimum percent…

A: Molarity of substance A can be calculated using the relation: M1V1=M2V2 from molarity, moles of A…

Q: KHP (potassium hydrogen phthalate, KHC8H4O4

A: Molarity = Moles of solute/ volume of solution (in L) Moles = Mass in gm/molar mass

Q: What weight (in grams) of oxalic acid (MW= 90 g/mol) will be required to prepare 1 liter of 0.25 N?

A:

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

A: The balanced chemical equation has the number of atoms of the reactants is equal to the atoms count…

Q: How many liters of 0.305 M K,PO, solution are necessary to completely react with 187 mL of 0.0184 M…

A: Given reaction: 2K3PO4(aq) + 3NiCl2(aq) -à Ni3(PO4)2(s) + 6KCl(aq) Observing the given chemical…

Q: A stock solution containing Mn2+ ions was prepared by dissolving 1.584 g pure manganese metal in…

A: Given that, Mass of Mn= 1.584 g Volume of stock solution = 1.00 L Now, 10.00 mL of this stock…

Q: What volume of 0.100 M Na3PO4 is required to precipitate all the lead(II) ions from 350.0 mL of…

A: First the balanced equation for reaction is determined. First, number of moles present in 350mL is…

Q: What volume of 0.100 M Na3PO4  is required to precipitate all the lead(II) ions from 400.0 mL of…

A:

Q: A standard solution of AgNO3 was prepared by dissolving 7.107 g of pure AgNO3 in sufficient water to…

A:

Q: 8- An impure 1 g sample of arsenious acid (H3ASO3) is oxidised to H3ASO, by titration with 45 mL of…

A: The question is based on the concept of quantitative analysis. We are  titrating arsenous acid with…

Q: 1. What mass of solid Lanthanum (III) oxalate nonahydrate { La2 ( C2O4 )3 ∙ 9 H2O } can be obtained…

A: Hi, we are supposed to answer one question. To get the remaining questions solved please mention the…

Q: 5- What weight of a substance containing iron should be taken in order that the percentage of iron…

A: Please find your solution below :

Q: What volume of water should be removed from 605. mL of 0.362 M CH1206(aq) to change the…

A: Interpretation- Volume of water that should be removed from 605 mL of 0.362 M C6H12O6 aqueous…

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.