(5) A student weighed a sample of KHP and found it weighed 1.276 g. After titration with NaOH, 19.84 mL of base was required for the neutralization reaction. Calculate the molarity of the base. Show calculations.

Q: A second analyst was attempting to determine the percent KHP in an unknown sample, similar to that…

A: From the given molarity of NaOH, number of moles of NaOH can be calculated followed by the…

Q: A lemon-flavored drink contains an unknown amount of citric acid, C5H8O7. What is the molar…

A: Given :-  C5H8O7 + 3NaOH --> Na3C5H5O7 + 3H2O  Volume of C5H8O7 solution = 100.0 mL  Molarity of…

Q: A student adds a small amount of phenolphthalein to an erlenmeyer flask, and it changes to pink when…

A: Phenolphthalein is colourless in acidic solution while it turns pink in a basic solution

Q: In the experiment conducted to determine the amount of acetic acid in vinegar, 8.2 mL of a 0.098 M…

A: According to the mole concept, in terms of mass, the amount of substance in moles is equal to the…

Q: If the copper standard solution has a concentration of 25 μg/mL, what is the concentration of a…

A: Given Concentration of copper standard solution = 25 μg/ml

Q: what is the percent of acetic acid in vinegar if a 10.00 g sample requires 35.00 ml of 0.09983 M…

A: Since we know that NaOH will react with acetic acid in vinegar as per the below reaction  CH3COOH +…

Q: 0.101 M of nitric acid reacted with 24.9 ml of 0.00491 Mole barium hydroxide solution. Write the…

A:

Q: In preparing a buret for titration, how many times do you put about 5-10 mL of sodium hydroxide…

A: Titration is the process by which a concentration of unknown solutions is known by known solutions.…

Q: Which is the yield?

A: Moles= molarity × volume(in L)  % yield = (actual yield/theoritical yield) × 100

Q: A solution of citric acid (H3CgH;O,) with a known concentration of 0.200 M H;C,H;O, is titrated with…

A: Given,Concentration of citric acid = 0.200 MVolume of Citric Acid = 25 mLMoles of citric acid =…

Q: What is the mass of sodium oxalate (Na2C2O4, MM = 134,00 g/mol), in mg, should be taken so that in…

A:

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: al 0.3IT M 5. Forgetful Freddy weighed his KHP sample, but forgot to bring his report sheet along, o…

A: Given: Standardization of NaOH using KHP KHP + NaOH = KHP-Na  + H2O NaOH: V = 18.46 ml M = 0.2987 M…

Q: What volume of 0.230 M HNO3 (nitric acid) reacts with 49.0 mL of 0.330 M Na2CO3 (sodium carbonate)…

A:

Q: A volumetric pipette was used to transfer 18.00 mL of 1.150 M HCI solution into a 125 mL flask. Four…

A: The balanced chemical equation between NaOH and HCl is given by        HCl(aq)    + NaOH(aq)…

Q: Exactly 410.4 mg of primary standard potassium acid phthalate (KHP), formula weight 204.2, is…

A:

Q: In a titration reaction 20.00mL of 0.500M KOH reacts completely with 12.55 mL of sulfuric acid, what…

A: Molecular reaction between KOH and H2SO4 . 2KOH(aq)+H2SO4(aq)→K2SO4(aq)+2H2O (l) From this reaction…

Q: Maganite is the leading brand for antacid to alleviate heartburn. Its active ingredient is a…

A: A 50.0 mL saturated solution was prepared. After filtering each solution, a 5.0 mL  aliquot was…

Q: What volume of 0.246 M HNO3 solution is required to react completely with 38.6 mL of 0.0515 M…

A: Given that : The molarity of HNO3 solution = 0.246 M The molarity of Ba(OH)2 = 0.0515 M The volume…

Q: What volume of 0.10 moldm-3 sulphuric acid would be required to neutralise a mixture of 1.06 g of…

A: Recall the given reactions,H2SO4  +  2 NaOH  →  Na2SO4  +  2 H2OH2SO4  +  Na2CO3  →  Na2SO4  +…

Q: A student titrates 25.00mL of H3PO4 with 0.0987 M KOH. She uses 54.06 mL to complete the chemical…

A: C1V1=C2V2 Expression is used.

Q: You titrated a 21.00 mL solution of 0.0500 M oxalic acid with a freshly prepared solution of KMnO4.…

A: Given, Volume of oxalic acid = 21.00mL. Molarity of oxalic acid = 0.0500M. Volume of KMnO4 solution…

Q: 6. a chlorous acid solution is added to solid sodium carbonate 7. solutions of strontium hydroxide…

A: Net ionic equation :  When spectator ions are removed from ionic equation,  the ions left in last of…

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: How many grams of KMnO4 are required to prepare 4.000 L  of 0.0350 M  KMnO4 solution that is used in…

A: Calculation of no. of mol of KMnO4: Calculation of amount of KMnO4:

Q: If 25.0 mL of 0.120 M Na3PO4 and 30.0 mL of 0.110 M CaCl2 are mixed, what precipitate forms?  Write…

A:

Q: 4. Here you titrate 100 mL of carbonic acid (H;CO) of unknown concentration with 0.01 M of potassium…

A:

Q: A barium mineral was dissolved in HCl to give a solution of BaCl 2. An excess of potassium sulfate…

A: Given: Volume of BaCl2 solution = 75.00 mL = 0.075 L                                (Since 1 L =…

Q: The student weighs out 0.18 g of a diprotic unknown acid and dissolves it in approximately 50 mL of…

A: Since the acid is diprotic  hence moles of NaOH required to reach end point = moles of acid X 2…

Q: What volume of a 0.462 M NaOH solution would be required to titrate 2.85 g of pure KHP

A: In acid base titration, all H+ neutralised by OH- . Here from mass of KHP we can determine moles of…

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

A: HClO4 is a strong acid, it reacts with magnesium hydroxide Mg(OH)2 , this is an acid base reaction.…

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: In the titration of a volume of 50 mL of a hydrochloric acid solution with Solution density 1.045 g…

A: Density is measure of mass per unit volume. Density =MassVolume Molarity is the ratio of moles of…

Q: How many milliLiters of 0.01000 N Ba(OH)2 are theoretically required to titrate 0.03000 g of H3AsO4…

A: Given : Mass of H3AsO4 -->  0.03000 g Normality of Ba(OH)2 = 0.01000 N

Q: The titration of 0.314 g of potassium hydrogen phthalate (KHP) requires 13.16 mL of a NaOH solution.…

A: we need to calculate moles of NaOH for the titration of 0.314 g of KHP

Q: CH3COOH

A: Acid-Base Titration Base: V = 55.7 ml, Molarity = 0.10 M Acid: V = 15 ml, Molarity = ? M

Q: Adic acid (H2C6H8O4) is an important carboxylic acid compound for the industry in which nylon is…

A: The answer to both the questions can be given as:

Q: What is the net ionic equation for NaOH going from a solid to an aqueous soution

A: Introduction: Sodium belongs to group 1 elements with atomic number 11. Sodium hydroxide is formed…

Q: Question attached

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

Q: A 5.00-mL sample of vinegar was pipetted into a flask, two drops of phenolphthalein indicator were…

A: Given-> Volume of sample = 5.00 ml Volume of NaOH = 45.62 ml Molarity of NaOH = 0.1008 M Density…

Q: In a titration of KOH, 0.0725 g of KHP is weighed into a flask and dissolved in deionized water. The…

A: Molar mass of KHP is 204.22 g/mol. Calculation of no. of mol of KHP: Since KHP is a monoprotic…

Q: You have identified by titration that a 1.78g sample of bleach contained 90.2mg of NaOCl. What is…

A: Mass percent is the ratio of mass of NaOCl to the mass of sample

Q: What is the theoretical yield of Pb(OH)2 when 250 mL of 2.8 M Pb(NO3)2 is made to react with 100 mL…

A: Given: Volume of Pb(NO3)2 = 250 mL = 0.25 L Molarity of Pb(NO3)2 = 2.8 M Volume of NaOH = 100 mL =…

Q: A 1.2516 gram sample of a mixture of CaCO3 and Na2SO4 was analyzed by dissolving the sample and…

A: (a) From the mixture, CaCO3 is precipitated out as CaC2O4. Thus1 mole of CaC2O4 is precipitated by 1…

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: 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: Maganite is the leading brand for antacid to alleviate heartburn. Its active ingredient is a…

A: The amount of a substance that resides in a solution determines the concentration of the solution.…

Q: Molarity of KMNO4 solution (M) from bottle Final reading of buret (KMNO4) (mL) Initial reading of…

A: We have to find the moles of KMnO4

Q: What is the concentration of a solution of silver nitrate needed to just react completely with 0.350…

A: Weight of NaCl = 0.350 gm Volume of AgNO3 = 47.5 ml = 0.0475 L (1 L = 1000 ml)

Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.