Post-lab Question #2: How many grams of KMNO4 are required to prepare 2.000 L of 0.0300 M KMNO4 solution that is used in titrating Na2C204? 12.2 O 9.48 O 4.74 19.0
Q: What is the concentration of a standardized HCl solution that required 50.78 mL of HCl to titrate…
A: we need to find the concentration of HCl needed for the titration
Q: A solution contains 0.0040 M Na3PO4. Calculate the minimum concentration (in M) of Ag* needed to…
A:
Q: What is the mass of H3PO4 in the sample when it consumed 30.0 mL of 0.0100 N Na2CO3 during…
A: Given, Normality of Na2CO3 = 0.0100 N Volume of Na2CO3 = 30.0 mL Mass of H3PO4 consumed = ?…
Q: Calculate the Ksp for each of the following. (a) CaCO3 has a solubility of 6.1 x 10-5 M. (b)…
A:
Q: 12. Primary standard sodium carbonate solutions containing 0.25 g of Na2CO3 required 30.50 mL of…
A:
Q: What volume of 0.305 M AgNO3 is required to react exactly with 155.0 mL of 0.274 M Na2SO4 solution?…
A: The balanced chemical reaction between the silver nitrate and sodium sulphate is shown below.
Q: A 10.00 mL sample of Y(OH)2 was titrated to the stoichiometric point with 14.50 mL of 0.2345 M H2X.…
A:
Q: Question 11 A mixture containing KCI (74.5513 g/mol) is analyzed by the Mohr method. A 0.500-g of…
A:
Q: A lab technician adds 0.15 mol of KOH to 1.00 L of 0.010 M Ca(NO3)2. Ksp=6.5×106 for Ca(OH)2. Which…
A: If the reaction quotient (Q) is less than the solubility product (Ksp), the solution is unsaturated…
Q: Treatment of hydroxylamine (H₂NOH) with an excess of Fe (III) results in the formation of N₂O and an…
A: Please find the below attachment. Hope this helped you. Thank you.
Q: What volume (L) of 0.432 M NaOH is needed to titrate 50.0 mL of 0.254 M HCl? You must show your…
A: Here given, Volume of HCl (V1) = 50 mL Strength of HCl (S1) = 0.254 M Volume of NaOH (V2) =?…
Q: A certain local brand of “healthy” chicharon was found to contain 0.4132 g of NaCl after Fajan…
A: Given : Mass of NaCl = 0.4132 gm Molar mass of NaCl = 58.44 g/mol Molar mass of Na+ = 22.99 g/mol…
Q: . A 1.000 g sample containing sodium oxalate,Na2C2O4 (MM=126 g/mol) is titrated with 40.00 mL of…
A: Given that: Mass of sample = 1.000g Molarity of KMnO4 = 0.0200M Volume of KMnO4 = 40.00mL Reaction…
Q: H3A has pKal = 3.1, pKn2 = 3.9, and pKa3 = 4.7. A titration using 0.500 M KOH and 100 mL of 0.100 M…
A: The given titration curve is for a tribasic acid H3A, with three equivalence points.
Q: The benzoic acid extracted from 105.6 g of catsup required a 14.67 mL titration with 0.0514 N NaOH.…
A:
Q: Prepare 100 mL of 0.0100 M KIO3. The dilute 0.0100 M KIO3 solution will be used to standardize the…
A: Given: Volume of stock solution (V1) = 5.00 mL Molarity of stock solution (M1) = 0.20 M Volume of…
Q: A 10.00 mL sample of Y(OH)2 was titrated to the stoichiometric point with 14.50 mL of 0.2345 M H2X.…
A: Given: The molarity of H2X = 0.2345 M. The volume of Y(OH)2 = 10.00 mL. The volume of H2X = 14.50…
Q: A 10.00 mL sample of Y(OH)2 was titrated to the stoichiometric point with 14.50 mL of 0.2345 M H2X.…
A: Stoichiometric Point-Chemical reaction is the point at which chemically equivalent quantities of…
Q: Titrate 0.5687g of solid KHP (KC8H5O4) requires 13.52 mL of an unknown NaOH solution to reach the…
A:
Q: QUESTION 30 What compound decreases in solubility as the temperature of the solution is increased…
A: #Q.30: We are given that the solubility of the solute decreases when the temperature is increased.…
Q: If 24.0 ml of 0.0100 M KMNO4 solution is needed to titrate 1.00 g of a sample of H2C204 to the…
A: The balanced equation is 5 H2C2O4 (aq) + 2 MnO4– (aq) + 6 H+ (aq) ---------> 10 CO2 (g) + 2…
Q: 30. Consider the titration involving the following reaction: Ba(NO3)2 + Na2SO4 25.00 mL of Na2SO4…
A: Given : 25.00 mL of Na2SO4 i.e. V2 = 25.00 mL 0.1500 M Ba(NO3)2 i.e M1 = 0.1500…
Q: A o.9325-g sample of a wheat flour was analyzed by the Kjeldahl procedure. The ammonia formed was…
A: In Kjeldahl method, liberated ammonia (NH3) is titrated with HCl, the acid. The equation involved is…
Q: Calcium in a 50-L serum sample is titrated with 1.85 x 10-4 M EDTA solution, requiring 2.5 mL. What…
A: Given, 50 micro Litre serum sample is titrated with 2.5 mL of 1.85 x 10-4M EDTA solution. What is…
Q: A solution contains 0.0040 M Na3PO4. Calculate the minimum concentration (in M) of Ag* needed to…
A: The concentration of Na3PO4 = 0.0040 M Solubility product concentration of Ag3PO4 = 1.8×10−18
Q: 24. According to the solubility curve, which of the following ionic compounds would be considered…
A: from the given solubility graph it is clear that the saturation value at 70 0c for the respective…
Q: A. The weight of 25 tablets of morphine sulfate (150 mg) is 3.075 g. If 0.3075 g was used in the…
A: #Part-A: Given the mass of morphine sulfate tablet taken for the assay = 0.3075 g Here NaOH is used…
Q: A 10.231-g sample of window cleaner containing ammonia was diluted with 39.466 g of water. Then…
A:
Q: Volume of liquid bleach titrated = 5 ml %3D Molarity of Na2S2O3= 0.1 M Volume of Na,S,O3 added = 16…
A: By using Molecular formula of bleach and calculating no. Of moles of Na2S2O3 , we can find no. Of…
Q: A. The weight of 25 tablets of morphine sulfate (150 mg) is 3.075 g. If 0.3075 g was used in the…
A: Mass of morphine sulfate tablet taken for the assay = 0.3075 g Volume of 0.023 N NaOH used to back…
Q: 3. Suppose that a 10M of NaCl solution with a volume of 3000ml is heated and looses 1.5liters of its…
A:
Q: According to the reaction below: if 35.48 mL of H2SO4 with an unknown concentration were titrated…
A: Given neutralisation reaction; H2SO4 +2KOH → 2H2O + K2SO4 Volume of H2SO4 solution titrated against…
Q: The Borax solution (Na2B4O7) was standardized by titrating 20.00 mL of sample with 1.044 M solution…
A: Given : Concentration of H2SO4 1.044 M Volume of Na2B4O7 solution = 20.00 mL And volume of H2SO4…
Q: Treatment of hydroxylamine (H₂NOH) with an excess of Fe (III) results in the formation of N₂O and an…
A: Given, 2H2NOH +4 Fe3+→N2O(g) +4Fe2++14H++H2O (i) Volume of K2Cr2O7=12.57 mL Molarity of…
Q: molar concentration of the acid
A:
Q: 5.00 mL of 2.32 M Fe(NO3)3 is combined with 1.00 mL of 0.50 M HClO4 and 4.00 mL of 2.00 × 10–2 M…
A: The reaction between Fe(NO3)3, HClO4, and KSCN is shown below.…
Q: (A) Calculate the weight of H;PO4 if you know that it's volume is 40 ml and it is used with Ca(OH)2…
A: The reaction taking place is: Normality of H3PO4 is calculated using the formula: N1V1=N2V2 and…
Q: 0.05 N AgNO3 titrated with (10 ml) NaCl. Calculate the N of NaCl? [when volume of AgNO3 titrated…
A: Here we have to determine the Normality of NaCl from the following given titration with AgNO3…
Q: Titration of 25.0 mL of an unknown concentration H2SO4 solution requires 37.6 mL of 0.1375 M NaOH…
A:
Q: Calculate the concentration (molarity) of Pb2+ ions in a solution made by adding 0.010 moles of…
A: Answer:- This question is answered by using the simple concept of calculation of equilibrium…
Q: What is the concentration of Cu2+ in a solution that has been prepared by diluting 1 mL of 0.1 M…
A:
Q: The volume of 0.0125 mol/L sodium thiosulfate used for titration is 98.7 ml. What is the amount of…
A:
Q: A laboratory stock solution has a molar concentration of 6.70 M NaOH. Calculate the volume (in…
A: We have given that concentration of stock solution = M1 = 6.70M NaOH Volume of stock solution…
Q: Use the following balanced chemical equation to answer the below question: 2H3PO4 (aq) + 3Mg(OH)2…
A: It is given that 14 mL sample of H3PO4 requires 3.51 mL of 0.400 M of Mg(OH)2 for the…
Q: A 2.1182.118 g sample of a solid mixture containing only potassium carbonate (MM=138.2058…
A: The reaction that will occur here will be an acid-base reaction and can be represented as below:…
Q: What volume of 0.5 M NaOH is required to react completely with 25.0 mL of 1.0 M H2CO3? Assume the…
A: Given that, Molarity of NaOH (M1) = 0.5 M Molarity of H2CO3 (M2) = 1.0 M Volume of H2CO3 (V2) =…
Q: Question 1: A sample weighing 0.821 grams contains only K2SO4 (FM 174.27) and (NH4)2SO4 (FM 132.14)…
A:
Q: molarity
A:
Q: 2. Explain the effect of each of the following sources of error the molarity of HCI as determined in…
A: The question is based on the concept of titrations. we have to determine how would the…
Q: QUESTION 8 Three titration trials were performed and the concentration of NaOH was determined for…
A: For question 8, the measured concentrations of NaOH: 0.19 M 0.12 M 0.12 M We have to calculate the…
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- Part A: Standardization of a Sodium Hydroxide Solution Titration 1 Titration 2 Titration 3 Mass of 125 mL flask 45.849g 46.715g 44.953g Mass of flask and KHP 46.849g 47.745g 46.003g Initial buret reading (mL) 0.5 ml 0.5 ml 0.5 ml Final buret reading (mL) 27.8 ml 26.5 ml 26.7 ml Volume of NaOH used (mL) 45.11 ml 45.06 ml 45.14 ml Calculations Titration 1 Titration 2 Titration 3 Moles of KHP Moles of NaOH Molarity of NaOH Average Molarity of NaOH: _______________In order to adjust the Potassium Permanganate solution, 0.0544g Na2C2O4 was taken and necessary experimental procedures were performed on it and the titrant consumption was found to be 7.9 mL. What is the KMnO4 concentration? A. 0.040B. 0.044C. 0.021D. 0.0271. A mixture containing only KCl and NaBr is analyzed by the Mohr Method. A 0.3172-g sample is dissolved in 50 mL water and titrated to the Ag2CrO4 endpoint, requiring 36.85 mL of 0.1120 M AgNO3. A blank titration requires 0.71 mL of titrant to reach the same endpoint. Report the % (w/w) KCl and NaBr in the sample. [Ans. 84.41 % (w/w); 17.59 % (w/w)]
- A 50.0 mL solution of Ca(OH)2 with an unknown concentration was titrated with 0.340 M HNO3. To reach the endpoint, a total of 26.2 mL of HNO3 was required. Write the balanced chemical equation for the reaction 3c2₂²- 1 + 2 (s) H 3 Ca ( Reset 4 (1) N LO 5 6 7 (g) OH 8 NO₂ 9 (aq) NO3 0Chemistry 10.00 mL of a solution containing Fe³+ is titrated with 17.26 mL of 0.1033 M TiCl2 3+ according to the equation: Fe3 Ti2+ Fe2+ + Ti3+ + What is the concentration of Fe³+ (FM 55.85) in the solution in g/L?Iodometric titration of Vitamin C with sodium thiosulfate How many moles of iodine (I2) react with the thiosulfate? (reacts in a 1:2 ratio) 5.66 x 10-4 M of sodium thiosulfate used in titration 0.62 g in 0.01 M in 250 mL conical flask 0.00075 M of iodine in the conical flask 0.00025 M of potassium iodate
- How much potassium oxalate can be added to 156.0 mL of 0.5 M [Cu(NH3)4]Cl2 before a precipitate of CuC2O4 begins to form? Ksp(CuC2O4)=2.9x10-8 and Kf(Cu(NH3)42+)=1.1x1012Include at least 3 significant figures in your answer.Titration of 0.2342 g of pure Na,C,0, (134.0 g/mol) required 33.45 ml of KMNO4 solution according to the chemical reaction: 2MNO, + 5C,0, +16 H* 2MN2* + 10CO, +8H,0 The Molarity of KMNO, solution would be: a. 0.01609 M b. 0.04020 M c. 0.02090 M d. 0.20140 M e. 0.12450 M Please fill in the space with one of the following characters (a or b or c or d or e)The tetraethyl lead Pb(C2H5)4 in a 25.00 mL sample of aviation gasoline was shaken with 15.00 mL of 0.02179 M I2. (Hint: one mole of I2 reacts with one mole of the tetraethyl lead). After the reaction was complete, the unused I2 was titrated with 7.37 mL of 0.02959 M thiosulfate solution. Calculate the weight of Pb(C2H5)4 (MW = 323.4 g/mol) in each liter of gasoline.
- 2. Direct titration: 10.00 t 0.02 ml of an unknown KHP solution required 11.54 0.02 mL of 0.1010 + 0.0006 M NAOH to reach the end point. a. What is the concentration of KHP in the unknown solution reported with uncertainty? 0.1166 0.040 b. If the unknown solution was prepared by dissolving 5.128 g of the unknown KHP (204.22 g/mol) in 100.00 mL of water, what is the weight percent of KHP in the sample? x %w/w KHP 4.959A certain local brand of “healthy” chicharon was found to contain 0.4132 g of NaCl after Fajan titration. How much sodium is present in the sample? MM NaCl=58.44 g/mol; MW Na+= 22.99 g/mol; MW Cl =35.45 g/mol 0.1626 mg 105.4 mg 0.1054 mg 162.6 mgA 0.5131-g sample that contains KBr (MM: 119.0023) is dissolved in 50 mL of distilled water. Titrating with 0.04614 M AgNO3 requires 25.13 mL to reach the Mohr end point. A blank titration requires 0.65 mL to reach the same end point. Report the %w/w KBr in the sample.