A sample containing both HCl (FW 36.45) and HNO3 (FW 62.98) had a density of 1.083 g/mL. A 10.00-mL aliquot of this sample required 26.22 mL of 0.1163 M NaOH for titration. Another 10.00-mL aliquot of the sample required 13.36 mL of 0.1216 M AgNO3 for titration. Calculate the % HNO3 in the sample.

Q: A student weighs out 0.9854 g of Na2CO3 unknown and dissolves it in 25.00 mL of deionized water. A…

A: Answer % of Na2CO3 in the unknown = 54.05% Formulas No.of moles                           = Given…

Q: A student in conducting molecular weight determination of an uninown diprotic acid. He first…

A: KHP dissociates completely to form K+ and HP-. HP- then acts as weak acid. KHP and NaOH are…

Q: Answer 7a

A: Solution Explanation:Step 1: Step 2: Step 3: Step 4:

Q: in an experiment, the molecular formula for calcium hydroxide was determined to be Ca(OH)2. In this…

A: Given that : The mass of Ca = 0.050 g The volume of DI water = 150 mL The molarity of HCl = 0.30 M

Q: A titration of 55.0 mL of a H₂CH₂O4 (fumaric acid) solution of unknown concentration with 0.788 M…

A: The balanced equation is H₂C₄H₂O₄ +  2KOH ------->K₂C₄H₂O₄ + 2 H2O  According to balanced…

Q: A solution containing 2.500 g of a triprotic acid H₂A was titrated with NaOH. It required 45.00 mL…

A: The question is based on the titrations.  We are titrating a weak acid with a strong base. We need…

Q: A 21.7 mL sample of a H3PO4 (triprotic) solution is titrated with a 0.507 MNAOH solution. The…

A: We are given that the titration reaction of 21.7 mL of H3PO4 takes place with 44.1 mL, 0.507M NaOH…

Q: 7B. Write the chemical equation for the acid/base equilibrium at the equivalence point of this…

A: Molarity of oxoacetic acid = 0.1250 mol/LMolarity of NaOH = 0.1080 mol/LKa = 1.810-5Kw = 1.010-14

Q: Phosphorous acid, H₂PO₂ (aq), is a diprotic oxyacid that is an important compound in industry and…

A:

Q: 500mL of a saturated solution of PbF2 (Ksp = 7x10-8) is prepared, this sample is titrated with…

A: We have find out the pH.

Q: If 15.0 mL of 0.187 M H2SO4 is titrated with 0.132 M NaOH solution, what volume of sodium hydroxide…

A: We can use the molarity equation to calculate the volume of NaOH solution. k x M1V1 = M2V2 Here, M1…

Q: Answer 7c

A: The objective of the question is to calculate the .

Q: A litre of solution containing 0.1 mol of CH3COOH and 0.1mole of CH3COONa provided buffer of pH…

A: Given : Moles of CH3COOH taken = 0.1 mol. Moles of CH3COONa taken = 0.1 mol. And moles of NaOH added…

Q: RbOH titrated with HBr, HF titrated with NaOH, NaHS titrated with HClO4. Predict whether the…

A: At the equivalence point, the pH = 7.00 for strong acid-strong base titrations. The nature of the…

Q: 1. how many moles of KCN, are required to prepare 250.0mL of a solution with a pOH equal to 2.86

A: 1) pH of a salt formed from weak acid and strong base is pH = 7 + 1/2 ( pKa + log C ) pKa = - log Ka…

Q: 3) In the treatment of myasthenia gravis, 10 mg of guanidine (NH-C(NH2)2) per kilogram of body…

A:

Q: Part B The titration of 0.5529 g of KHP required 25.75 mIL of an NAOH solution to reach the…

A:

Q: Calculate the pH of a buffer made from mixing 11.0 mL of 0.421 M NaC2H3O2 and 12.5 mL of 0.305 M…

A: Given: The volume of NaC2H3O2 = 11.0 mL The concentration of NaC2H3O2 =0.421 M The volume of HC2H3O2…

Q: You have prepared a 0.11 M acetate buffer solution in a volume of 1 L at pH 5.76. You then added 80…

A: Topic-- Mechanism of buffer action when HCl is added to the buffer solution and determining the…

Q: Consider the following Acid-Base Titration Curve: 12 10 4 10 15 20 Volume of Titrant (mL) This could…

A: For a strong acid-strong base titration, pH at equivalence point = 7 For a strong acid- weak base…

Q: 10. mL of 0.25 M Ca(OH)2 solution is titrated with 0.50 M HNO3 solution, calculate pH of the…

A:

Q: Identify a good buffer for ph < 7

A: A buffer solution (more precisely, pH buffer or hydrogen ion buffer) is an aqueous solution…

Q: Let H2A represent a diprotic acid and let A² represent its corresponding base. A 40.0 mL sample of…

A: Diprotic acid is an acid that can give two hydrogen ions (H+) or protons per molecule in an aqueous…

Q: Sodium hypochlorite (NaOCl, the active ingredient of bleach) was dissolved in a solution buffered to…

A: 1) Solution buffered to pH = 6.20 2) NaOCl as an active bleaching agent pKa=7.518

Q: Titration was carried out on 20 ml of 0.250 M HNO2 solution with 0.250 M NaOH solution in the…

A: Acid-base titration reaction takes place between nitrous acid and sodium hydroxide gives sodium…

Q: A 1.00 g sample containing NaHC0, was dissolved in water and titrated using 0.500 M HCI. The sample…

A: Given that: Molarity of HCl = 0.500M Volume of HCl required = 12.5ml = 12.5ml×1L/1000ml = 0.0125L

Q: A 100.0 mL sample of natural water was titrated with NaOH. The titration required 13.25 mL of 0.1589…

A:

Q: Let H2A represent a diprotic acid and let A2 represent its corresponding base. A 40.0 mL sample of…

A: Diprotic acid is an acid that can give two hydrogen ions (H+) or protons per molecule in an aqueous…

Q: Red cabbage juice is a sensitive acid-base indicator; its colors range from red at acidic pH to…

A: The equation for the given reaction is,

Q: A 15.00 ml aliquot of a 0.155 mol L1 3-methylbutanoic acid solution was titrated with a 0.198 mol L…

A: The balanced equation for the reaction between 3-methyl butanoic acid and NaOH is  where one mole…

Q: 6. If 25.1 mL of 0.109M acid with a pKa of 5.27 is titrated with 0.108 M NaOH solution, what is the…

A: The volume of acid V1=25.1 mL The concentration of acid C1=0.109 M The strength of an acid is pKa =…

Q: 30 cm3 of 0.5 M solution of weak monoprotic acid titrated with 10 cm3 of a 1 M NaOH solution. If the…

A:

Q: In the titration of 100.0 mL of 0.050 M HClO2 (pKa = 1.96)  solution with a 0.10 M NaOH titrant,…

A: Given: Concentration of HClO2 = 0.050 M Volume of HClO2 solution = 100.0 mL = 0.100 L…

Q: If an identical titration is performed with the strong acid HCl, explain why the pH at the…

A: In case of a Strong acid-Strong base, both strong acid and base dissociate completely in the…

Q: A 250.0-mg sample of an organic monoprotic weak acid was dissolved in an appropriate solvent and…

A: Ratio of number of gram equivalents present in the solution to the volume of the solution in liter…

Q: Calculate the pH of the above buffer after 10.00 mL of 1.000 M NaOH (0.01000 mol OH1) was added to…

A:

Q: placed 10 drops of 1.0 M CoCl2 in a test tube.  I then added drops on concentrated HCl.  The color…

A: The question  is based on le-chatelier principle.   IT states that when a system at EQUILIBRIUM is…

Q: ) A 100mL sample is taken to determine the alkalinity in a 1 liter water sample and titrated with…

A: Given :           Z = Molarity of HCl = 0.15 M          V = Volume of water titrated = 100 mL…

Q: A solution contains both NaHCO3 and Na2CO3. Titration of a 50.00 mL portion to a phenolphthalein end…

A: Molarity of HCl = 0.1385 MWhen phenolphthalein indicator is used:Volume of mixture taken for…

Q: A 1.10 g sample of benzoic acid was dissolved in water to give 76.9 mL of solution. This solution…

A: The solution is given below -

Q: n of 50.00 mL of 0.04715 M NaC204 required 39.25 m nganate solution. Calculate the molar…

A: Given,  Molarity of Na2C2O4 = 0.04715 M Volume of Na2C2O4 = 50.0 mL Mmol of Na2C2O4 = M × V     =…

Q: A 1.0 g sample containing urea was dissolved in water and diluted in a 100.00 mL volumetric flask.…

A: Given:  Mass  of sample = 1 gm  Molarity of HCl solution = 0.05 M HCl  Volume of HCl  used = 30 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.