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- (a) (1) CI AICI (2) HNO₂, H₂SO (3) O (4) Me,S (5) NaBH; H₂O+ एल Draw Your SolutionDilution is necessary for commercially available acids such as HNO3, H2SO4 etc so that the strength is reduced to be used by students in a chemistry laboratory. Select one: O True O FalseWhat volume of 1.73 M K2Cr2O7 is required to titrate 1.85 g of CH3OH dissolved in 30.0 mL of solution?
- 4. If 100 mL of a pharmaceutical prepara- tion contains 20 µL of a 50% w/v solution of benzalkonium chloride, what is the percentage strength of that agent in the solution? 4. 0.01% w/v benzalkonium chloride(a.) Titration of a 12.0 mL solution of HCl requires 22.4 mL of 0.12 M NaOH. What is the molarity of the HCl solution? (b.) Titration of a 10.0 mL solution of NH3 requires 15.0 mL of 0.0250 M H2SO4. What is the molarity of the NH3 solution?Magnesium Chloride is available as magnesium chloride hexahydrate in an injectable solution that supplies 1.97 mEq of magnesium per milliliter. What is the percent strength of magnesium chloride hexahydrate in this solution?
- 1.750 g öf HBF ih 250.0 ML of 1410 aqueous solution der the following reacti.. 8. You are asked to make 250.0 mL of a 1.5 M solution of H2SO4 in lab. You have a stock solution of 10.0 M H2SO4 available to you. How do you make the solution? + 9. Consider the balanced reaction in 1b above. If you begin with a 150.0 mL of a 1.3 M solution of NH&OH and excess CuSO4, how much Cu(OH)2 will you produce? MacBook Pro DII F9 F10 F3 F4 F5 F6 F7 F8 @ 2# 2$ 2 3 4 5 8 W R Y この LLA 5.00 gram sample containing NaCl was treated with 50 mL of 0.1995N AgNO3 and required 10.45 mL of 0.0900N NH4SCN, What is the percentaqe purity of NaCl (GEW=58.44)Rank it by 1, 2, 3 List the dominant (strongest) type of IMF for the pure substances, then rank the strength of each compound based on IMFS within the samples. (1 = strongest, 2 = in between, 3 = weakest) IMF Substance Relative Strength HBr O2 CH;OH
- The ascorbic acid, C,H;Os (176.124 g/mmol) content of a bottle of peach juice containing 2.50 L was determined by titration with a standard solution of potassium iodate, KIO3. The KIO; solution was prepared by dissolving 100.4 mg primary standard grade KIO; (214.001 mg/mmol) to a final volume of 250.0 mL. To a 200.00-mL aliquot of the sample, 10 mL of KI, 10 mL of HCl and 5 mL of starch solution were added and subsequently titrated, requiring 18.19 mL of the KIO; titrant. The relevant reactions are given below: KIO; + 5KI + 6H* → 3l2 + 6K* + 3H;0 CH;O, + l2→ CH,O, + 21- + 2H* a. How many millimoles of ascorbic acid is in the titrated sample? b. What is the mass of ascorbic acid per bottle of the peach juice?A 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 CI=35.45 g/mol Cr + Ag+ AgCl(s) O 0.1626 mg O 162.6 mg 0.1054 mg O 105.4 mg →1.) How Many grams of NaOH (MW=40.0) are in 200 ml of a 0.175 M solution of NaOH?