8. The following titration data was collected in a lab. Based on the results, determine the concentration of the aqueous sulfuric acid acid. Concentration of NaOH used: 0.50 M Volume of NaOH used: 50.0 mL Indicator: phenolphthalein Endpoint color change: olorless to pale pink Table 1 Volume of sulfuric acid Required Burette reading (mL) Trial 1 Trial 2 Trial 3 Final reading 31.28 39.17 46.70 Initial reading 1.18 9.08 16.62 Volume H:SO4 used (mL)
Q: a. Assuming that the acid is a strong monoprotic acid, what is the molarity of the acid? b.…
A:
Q: Buffer 1: Using a graduated cylinder measure out 20.0 mL of 0.10 M acetic acid. Using a pipet, pipet…
A: For buffer 1, 20 ml of 0.10 M acetic acid mixed with 25 mL of 0.10 M sodium acetate in 100 ml beaker…
Q: Na2CO3 + HCl -> NaCl + NaHCO3 Na2CO3 served as the primary standard in a titration experiment. Find…
A:
Q: A titration was performed to find the concentration of hydrochloric acid and the following results…
A: Accuracy is defined as the closeness of a measured value to a standard or known value. Precision is…
Q: A 25.0 mL sample of a solution of a monoprotic acid is titrated with a 0.115 M NaOH solution. The…
A: Given , A sample of monoprotic acid is titrated with NaOH solution .
Q: 1. Dilution of NaOH Solution: Molarity of NAOH stock solution ..1000M wwwwwwww wwww www Volume of…
A: 1. Dilution of NaOH solutions : M1 = initial concentration of NaOH = 1000M V1 = initial volume =…
Q: In a test tube with 0.3 mL of N-methylaniline, 5 mL of 10% NaOH, 0.4 mL of benzene sulfonyl…
A: the solution is as follows:
Q: A 0.6423 g sample that might contain NaOH, Na₂CO₃, NaHCO₃, or a permissible mixture of the bases is…
A: NaOH is a strong acid, so first it will be completely neutralised by the strong acid HCl. The…
Q: Determine the pH at one-half of the equivalence point. Express your answer to two decimal places.…
A: The pH at the half of the equivalence point, at the equivalence point and the after adding 6.0 mL of…
Q: The flask contains 10.0 mL10.0 mL of HClHCl and a few drops of phenolphthalein indicator. The buret…
A: Given, The Volume of HCl = 10.0 mL. The molarity of HCl = x. The Volume of NaOH = 31.1 mL. The…
Q: Introduction to Volumetric Analysis A 0.095g sample of oxalic acid dihydrate is titrated with NaOH…
A: Given the mass of oxalic acid dihydrate, H2C2O4.2H2O(s) = 0.095 g Molar mass of oxalic acid…
Q: Use a primary standard to determine an unknown concentration using an acid-base titration. Potassium…
A: When KHP and barium hydroxide react with each other,then Following balanced Chemical Reaction…
Q: Calculate the pHpH at the equivalence point for titrating 0.240 MM solutions of each of the…
A:
Q: To plot the deformation curve resulting from 10 mL of 0.1 normal sodium hydroxide with 0.1 normal…
A: Equivalence point is the point of titration at which amount of titrant added totally neutralizes the…
Q: Consider the titration curve for aqueous 0.5M NaOH treatment of acid. The pH at the equivalence…
A: The above graph is showing weak acid vs strong base for simple identification here observe the lower…
Q: 8. A 25.00 mL HCl of unknown molarity was titrated against 0.8339 M NaOH. Based on the following…
A: Number of moles of solute present in 1L of solution is known as molarity of the solution. Molarity…
Q: how many moles of weak acid are present in this solution?
A: Given: volume=2.44000×101 mLmolarity=2.12000×10-1 M
Q: From the 3 trials, determine the average Molarity concentration of the H2SO4 to 3 significant…
A:
Q: Express the concentration of acetic acid in both samples as % by mass of acetic per 100mL of…
A: A numerical problem based on quantitative analysis, which is to be accomplished.
Q: Just fill out Table 1 by writing “+” if the compound is soluble/miscible in the solvent. Otherwise,…
A: "Like dissolves like" is the thumb rule for dissolution of solute in solvent. This means highly…
Q: Use a primary standard to determine an unknown concentration using an acid-base titration. Potassium…
A: The balanced chemical reaction between barium hydroxide and KHP is Ba(OH)2 + 2KHP → Ba(KP)2 + 2H2O
Q: Which of the following steps MUST be done prior to titration of an analyte? I. Prepare a…
A: Steps done prior titration.
Q: 14 9 Hd 7 A pka of the indicator D C B negligible volume difference Vbase Titration of a Strong Acid…
A: A titration curve is drawn by taking Volume of titrant added on X axis and pH on Y axis.
Q: A substance contains 0.5 g of magnesium hydroxide as the only basic ingredient . The sunstamce is…
A: Given: Mass of magnesium hydroxide i.e. Mg(OH)2 in 1 tablet = 0.5 g Concentration of stock HCl…
Q: The graph shows the titration of the aqueous solution containing 0.138 g of unknown monoprotic acid…
A: For a monoprotic acid and NaOH , first we right a balanced reaction. At equivalence point , acid and…
Q: Calculate the volume in milliliters of 0.362 M KOH necessary to titrate 28.38 mL of 0.279 M diprotic…
A: Chemical reaction between KOH and H2SO4: 2KOH + H2SO4 → K2SO4 + 2H2O From…
Q: t is time for the titration. You measure 15.0 mL of the H2C2O4 solution with a 100-mL graduated…
A: The titration is carried out between oxalic acid solution and sodaium hydroxide solution. The…
Q: The correct indicator was added to 25.00 mL of a 0.1340 M solution of pentanoic acid (CH3(CH2)3CO0H)…
A: Pentanoic acid is titrated with NaOH.
Q: The following titration data was collected by a students in CH1031. Based on the results, determine…
A: Data given: The concentration of NaOH used, M1 = 0.25 M The volume of NaOH used, V1 = 25.0 mL
Q: 4. In an experiment to determine the concentration of an HCCI sample of unknown concentration, 0.1 M…
A: The concentration of unknown solutions is calculated by using the process of titration. The…
Q: 50 mL sample solution containing Na2CO3 and NaOH is titrated with 0.2 M HCl solution. In the…
A: In the presence of phenolphthalein, NaOH is titrated by hydrochloric acid whereas in the presence of…
Q: it is time for the titration. You measure 15.0 mL of the H2C2O4 solution with a 100-mL graduated…
A: The addition of solution of a known concentration to a solution having unknown concentration of…
Q: only SELECT correct respomses 1) Titrations of different forms are often employed to quantitate…
A: Correct responces are 1 2 3 5 6 7 8 9 11
Q: 25.0 mL aliquots of acidified tin(II) iodide are titrated with 0.396 mol/L of potassium dichromate.…
A: Working formula: volume*Molarity = no of mmol the balanced chemical reaction is as follows: 2…
Q: researchers titrated a 100mL solution of 0.1M glycine at pH 1.72 with 2 M NaOH solution. She then…
A:
Q: A 125.0 mg sample of an unknown, monoprotic acid was dissolved in 100.0 mL of distilled water and…
A: The graph point where slope will be zero then point will be the equivalence. The pH value is…
Q: measured pH of 0.100 M maleic acid with an initial volume of 25.00 mL as it is titrated with a…
A: Given: Maleic acid= 0.100 MMaleic acid initial volume = 25.00 ml titrated with strong base 0.100 M…
Q: olphthalein (9.9) Resazurin (5.1) Phenol Red (7.4) This is a lab where strong acid is titrated by a…
A: Indicators are used for indicating the pH changes that occur in the substances upon addition of…
Q: A different titration experiment using a 0.122M standardized NaOH solution to titrate a 26.48 mL…
A: Molarity of trial 1 = 0.0345 M Molarity of trial 2 = 0.0334 M Molarity of trial 3 = 0.0381 M Average…
Q: Buffer 1: Using a graduated cylinder measure out 20.0 mL of 0.10 M acetic acid. Using a pipet, pipet…
A: A buffer is an aqueous solution that resists change in pH value on addition of small amount of acid…
Q: The following titration data was collected by a students in CH1031. Based on the results, determine…
A: Given that :
Q: (4). A buret in the “The soluble chloride determination by gravimetry” lab is employed as ____…
A:
Q: In a test tube with 0.3 mL of Aniline, 5 mL of 10% NaOH, 0.4 mL of benzene sulfonyl chloride. Add a…
A: the answer is as follows:
Q: An 20.00 mL unknown solution required two indicators for titration. The first indicator reaches its…
A:
Q: From the graph find equivalence point, determine pH at half-equivalence point. Calculate Ka value of…
A:
Q: An 20.00 mL unknown solution required two indicators for titration. The first indicator reaches its…
A: As per the given problem, 20.00 mL of the unknown solution requires two indicators for titration.…
Q: Calculations for Acetate Buffer Solutions 2. Molarity of sodium acetate in acetate buffer. 2.…
A: Molarity is defined as the moles of solute present per unit volume of solution. It is a way of…
Q: 50 mL sample solution containing Na2CO3 and NaOH is titrated with 0.2 M HCl solution. Acid…
A: In the presence of a strong base (NaOH) in the mixture of Na2CO3 and NaOH, HCl first reacts with…
Step by step
Solved in 3 steps
- 0-25 Nor 1lit of Hcl mixed Ceith OINO somlor Hel, then find Normalibs q folition is A) 0. 16 B) 0.24 C) 0. 32 )) 0.48Q1) A sada- Lime Sample is 90% NaoH and 10% CaO• If 3gm is dissolved in 250 ml, what is the tutal normadity of the Selution as abase ? How many milliliters of O.57N H2 S@4 would be requiredd to titrate i00 me of the Solution ? Ans.s ( 0.309 N, 60.59 ml) Q12) How much water that required add to 200 ml HNO, ( densly = 1.285 gm/ml) Contains 46 wt% acid to Convert lo wt% acid solution? Ars. : 919.6 mlprecipitate is an insoluble solid X G When Carbonates react with a- attempt=24101&cmid%3D79168&page=D12 glish (en) - الامتحان النها The hydroxides of Group IA and IIA elements, except for beryllium hydroxide, are weak bases Select one: t of O True O False estion us page Jump to. Course Syllabus o gluwge jla y Student (Log out)
- ANSWER BI AND ANY OTHER THREE QUESTIONS SECTION D Question B1 One way to delermine the pKa value is by use ofa pli curve. One student used thie pH curve to determine thc pka value of the weak monoprotic acid. She transferred 25.0 cm' of 0.100 M solution of the acid into a conical flask and measured the pll of the acid solution using a pH mcter accurate to one decimal place. A solution of sodium hydroxide of concentration 0.100 mol dni was added from the burette in small portions until the alkali was present in excess. The pH of the mixture was recorded after each addition of the sodium hydroxide solution. Then she plotted the pH of the solution versus volume of alkali added from the burette and used this graph to determine the acid dissociation constant. 14 12 10- 10 20 30 40 50 VNaOH (ml) a) Calculate mass of the acid required to prepare 100 cm' of 0.1 solution of this acid.(Molar mass of the acid 150 g mol) b) What is the volume of sodium hydroxide added at cquivalence point? c) What…I performed an automatic titration of cola product and produced the following results: Volume (mL) of Standardized NaOH Titrant used to achieve the first equivalence point used in titration of cola product: Trial #1: 1.300 Trial #2: 1.137 Trial #3: 1.140 May you explain why trial number one is an outlier and suggets how I may fix this in the future?Fast pls i will give u like for sure solve this question correctly in 5 min pls A student analyzed a CaCO3 antacid tablet by neutralizing the base with an excess of .60 M HCL and back-titrating the excess with .50M NaOH. He recorded the following data: mass of tablet = 1.3g amount of active ingredient CaCO3 per label = 500 mg volume of HCl added: 25 mL initial buret reading : 34 mL final buret reading : 47.4 mL If the concentration of the provided HCl is actually higher than .60M, would the determined mass of CaCO3 in the antacid tablet be too high or too low?
- Title: Potentiometric Acid Titration fitulo:Tabla de ph volumen NaOH (ml) ph Titulación NaOH 20 4.25 7.39 20.1 6.24 7.03 7.21 6.83 6.59 20.2 6.59 6.24 20.3 6.83 6 20.4 7.03 4.25 20.5 7.21 20.6 7.39 1 19.9 20 20.1 20.2 20.3 20.4 20.5 20.6 20.7 V NAOH (ml) With the previous graph determine the following: a. Determine the bufer zone on the graph b. Determine the volume at the stoichiometric point of the acid titration c. Determine the average volume d. Use the medium volume to get the pka e. From pka, get the value of kaAnsw GA 20. Answ My C X C Write C The F X C Whe x akeCovalentActivity.do?locator=assignment-take [Review Topics] [References) Use the References to access important values if needed for this question. When 25.0 mL of a 1.99×104 M lead nitrate solution is combined with 15.0 mL of a 6.28×10-4 M sodium iodide solution does a precipitate form? (yes or no) For these conditions the Reaction Quotient, Q, is equal to Submit Answer Retry Entire Group 1 more group attempt remaining क Ni ENG US Home End InsA 10.00-mL aliquot of a known HCl solution (3.800 g/L) was titrated with a 4.100 g/L NaOH solution. Calculate the range of the blank corrected titration volumes using the titration data below: Blank Trial 1 Trial 2 Trial 3 Initial Volume (mL) 12.50 0.50 12.30 34.75 Final Volume (mL) 13.10 10.45 22.35 45.27
- 6) Bu analyst in a solution uning two dierent indicators. lis results were an /lowes : meanired the con cen tration n aid Mean [HCI]+ Stand Dev. 002467テ 0.0045 Indi cator A: 18 12 Indicator B: 0-02407 チ0.0032 Is the difference between te tueo indican Ys figniticand at he 95%. confiden ce loue/?The following titration data was collected by a students in CH1031. Based on the results, determine the concentration of the aqueous hydrochloric acid. Concentration of NaOH used: 0.25 M Volume of NaOH used: 25.0 mL Indicator: phenolphthalein Colorless to pale pink Endpoint color change: Table 1 Volume of hydrochloric acid Required Burette reading (mL) Trial 1 Trial2 Trial 3 29.28 1.78 Final reading Initial reading Volume HCI used (mL) 36.62 43.98 9.28 16.62Instruction: Show your solutions. 2. A 0.5843 g sample of a plant food preparation was analyzed for its N content by Kjeldahl mehod, the liberated NH3 being collected in 50.0 mL of 0.1062 M HCl. The excess acid required 11.89 mL back-titration with 0.0925 M NaOH. Calculate %N in the sample.