A 14.00 mL sample of sulfuric acid is diluted to 50.00 mL. A 10.00 mL aliquot is titrated to a phenolphthalein endpoint with 42.80 mL of 0.1020 M NaOH. What is the molarity of the original solution.

Q: MGNH&PO4-6H2O has a solubility in water of 0.023 g/100mL. Suppose a student obtains 0.7193 g of…

A: Solution:- Given the solubility of MgNH4PO4.6H2O is 0.023 g/100 mL  Mass of precipitate = 0.7193 g…

Q: An aspirin sample, 0.62 grams, was titrated with 28 mL of 0.105 M NaOH solution. What is the percent…

A: The Question is Based on experimental Chemistry . We have to calculate percentage purity of the…

Q: What mass of solid magnesium phosphate is formed when 250mL of 0.225 M magnesium hydroxide are mixed…

A: when 250mL of 0.225 M magnesium hydroxide are mixed with 150 mL of 0.150M phosphoric acid. To find…

Q: percent NaOH

A:

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 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 of…

Q: A 35.0 mL portion of 0.255 M nitric acid is added to 45.0 mL of 0.328 M Mg(NO3)2. What is the…

A: Given: Volume of nitric acid=35.0 mL Molarity of nitric acid=0.255 M Volume of Mg(NO3)2=0.328 M To…

Q: To determine the amount of magnetite, Fe3O4 in an impure ore, a 1.5419 g sample is dissolved in…

A: The balance chemical equation can be given as below 2Fe3O4 → 3Fe2O3 The formula weight of Fe3O4 =…

Q: A student was tasked to neutralize 25.8 mL solution of 0.379 M H2SO4 (98.079 g/mol) using 0.562 M…

A: Given-> Volume of H2SO4 = 25.8 ml  Molarity of H2SO4 = 0.379 M Molar mass of H2SO4 = 98.079…

Q: 1. A solution was prepared by dissolving 1210 mg of K3Fe(CN)6 (MM=329.2 g/mol) in sufficient water…

A:

Q: What mass of NaCrO4 is required to precipitate all of the silver ions from 75.0 mL of a 0.100 M…

A: NOTE: please note that molecular formula of sodium chromate indicated is wrong. I have used the…

Q: What is the molar concentration of Cl– in a solution prepared by diluting 12.5 mL of a 0.100 M…

A: Molar concentration of Cl-

Q: b. What mass of MgSO4•7H2O will need to be weighed to prepare this solution'? c. A student preparing…

A: Since the concentration of the solution is for subpart b is not given, we'll do the subpart c.…

Q: A sample containing NaCl, NaBr, and inert materials weighs 1.000 g. With excess AgNO3 it gives a…

A: Given that: Mass of  NaCl+ NaBr = 1.000 g Mass of precipitate = 0.5260 g AgBr is converted to AgCl,…

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

A:

Q: A 0.411 g sample of potassium hydrogen phthalate, KHC8H4O4 (molar mass = 204.22g/mol), is dissolved…

A: Calculation of moles for KHC8H4O4:

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

A: Given Titration of H2SO4 and KOH. To find The volume of KOH required to completely react with the…

Q: A titrant of 1.0 M K2Cr2O7 was used for titration of 30 mL aqueous ethanol C2H6O solution and…

A:

Q: An impure sample of barium hydroxide of mass 1.6524g was allowed to react with 100mL of 0.200M…

A: Molar mass of Ba(OH)2= 171.34 g/mol Mass of impure sample of Ba(OH)2=1.6524g Volume of HCl=100ml…

Q: A 4.00 g mass of NaOH is dissolved in 5.00 mL of water. A 4.00-mL aliquot of this solution is then…

A: Molar concentration of solution (molarity) is the no of moles of solute per liter of solution.…

Q: An aqueous solution of iron(II) sulfate (FeSO4) is prepared by dissolving 2.75 g  in sufficient…

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: Working formula Volume×Molarity = no of mmol The weight percent by Volume  = [(Mass of…

Q: What is the maximum volume of 0.25 M sodium hypochlorite solution (NAOCI; laundry bleach; MW= 74.44…

A:

Q: what total volume of 20.6 % m/v sodium phosphate is needed to have a total of 69.5 g of sodium…

A: Given: Mass by Volume percentage=20.6 % Mass of sodium phosphate=69.5. The volume of sodium…

Q: 5.00 mL of 2.5 M NaCl(aq) is diluted with water to the calibration line in a 100.00 mL volumetric…

A: Since the dilution is happening by adding water only  Hence the moles of NaCl taken initially should…

Q: The titration of 0.9297 g of KHP (molar mass=204.227 g/mol) requires 41.02 mL of NaOH solution, What…

A: Given: Mass of KHP = 0.9297 g Volume of NaOH = 41.02 mL Molar mass of KHP = 204.227 g/mol

Q: The density of concentrated sulfuric acid containing 94% by mass of H2SO, is 1.836 g/mL. Calculate…

A: Given:  Density of H2SO4 solution = 1.836 g/ml  Concentration of H2SO4 solution = 94% by mass…

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: A 10.00 mL sample of vinegar is titrated with 0.187M NaOH and requires 16.33mL of NaOH to reach the…

A:

Q: A student mixed 100.00 mL of Ba(OH)2(aq) (unknown molarity) with 500.00 mL of 0.0200 M NAOH(aq) in a…

A: Solution -

Q: 25 ml sample of H3PO4, requires 31.15 mL of 0.242N KOH for its titration. What is the normality of…

A:

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: 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: 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: What mass of Na2CrO4  is required to precipitate all of the silver ions from 20.0 mL of a 0.700 M…

A: Given: Volume of AgNO3 = 20.0 mL = 0.02 L Concentration of AgNO3 = 0.700 M   Chemical reaction…

Q: The nitrogen and protein content of a 0.757 g sample of flour sample was analyzed using Kjeldahl…

A:

Q: What is the percentage purity of sodium hydroxide pellets, 1.0056 g of which was titrated with 21.5…

A: Solution The mole construct may be a convenient methodology of expressing the quantity of a…

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

A: Concentration in terms of molarity is defined as the moles of solute present per litre of the…

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: A sample of solid Ca(OH)2 was stirred in water at a certain temperature until the solution contained…

A:

Q: A piece of chalk (mainly calcium carbonate) is placed in 250. mL of 0.299 M HCl. All the CaCO3…

A: Number of mmols = molarity x volume (mL) Chemical equation for the reaction of HCl and CaCO3 can be…

Q: A 10.00 ml sample of a solution of hydrofluoric acid, HF, is diluted to 500.00 ml. A 20.00 ml…

A: At equivalence point the molarity of both HF and NaOH becomes equal in the titrated solution. From…

Q: In a lab, you diluted a sample of bleach to 1/10 concentration in a 250 volumetric flask. Then…

A: Molarity of sodium thiosulfate, Na2S2O3 used = 0.1215 M Bleach has NaClO or HClO that reacts with…

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: Many chemical compounds contain impurities. Crude potassium carbonate (K2CO3) obtained from the…

A:

Q: What volume of 0.2456 M lead(II) nitrate solution would be required to reach the endpoint when…

A:

Q: Calculate the molarity of the following solution: a) 10.00 mL of 0.500 M NaOH (aq), diluted to 250.0…

A: Molarity is the concentration of a solution expressed as the number of moles of solute per litre of…

Q: A solution is prepared by adding 2.0 g of solid CaBr2 and 1.55g of NaBr to 100.ml of 0.15 M AlBr3.…

A: Given, A solution is prepared by adding 2.0 g of solid CaBr2 and 1.55g of NaBr to 100.ml of 0.15 M…

Q: 0.6113 g sample of Dow metal, containing aluminum, magnesium, and other metals, was dissolved and…

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