a solution of HClO4 was standardized by dissolving 0.4008g of primary standard grade HoG in a solution of ONe. the liberated ON consumer 43.75ml of the acid. Calculate the molar concentration of the HClO4
a solution of HClO4 was standardized by dissolving 0.4008g of primary standard grade HoG in a...
A Na_2CO_3 standard solution is prepared by transferring 2.4817 g of primary standard grade sodium carbonate into a 250.0 mL volumetric flask, dissolving the sample in ~ 100 mL of distilled deionized water, and diluting to the mark. A 25.00 mL aliquot is taken and titrated with 42.65 mL of HCI solution. Calculate the concentration of the HCI solution. (Molar masses are: Na_2CO_3 = 105.989 g/mole; HCI = 36.461 g/mole; H_2O = 18.015 g/mole.) Circle the best choice. (Showing calculations...
A Na2CO3(MM = 105.99 G/MOL) standard solution is prepared by transferring 2.4814 grams of primary standard-grade sodium carbonate to 250.0mL volumetric flask, dissolving the sample in about 100 mL of distilled deionized water and diluted to the mark. A 25.00mL aliquot is taken and titrated with 40.18mL of HCl solution. Calculate the concentration of the HCl solution.
A KMnO4 solution is standardized by a metallic iron primary standard. To do so, the metallic iron is dissolved in acid, reduced into Fe2+ and titrated by permanganate. If 33.00 mL of KMnO4 are required to titrate 0.5585 g of iron, what is the concentration of the permanganate solution?
A solution of hydrochloric acid is standardized using pure Na2CO3 as the primary standard. The net ionic equation is CO32- + 2H+ --> H2O + CO2 (g). A sample of Na2CO3 weighing 0.3827g required 41.26mL of HCl for titration. Calculate the molarity of the HCl solution.
1) A Na3PO4 standard solution is prepared by transferring 3.50 g of primary standard-grade sodium carbonate to a 500.0-mL volumetric flask, dissolving the sample in ~250 mL of distilled deionized water and diluted to the mark. A 50.00-mL aliquot is taken and titrated with 46.65 mL of HCl solution. Calculate the concentration of the HCl solution. please show your work clear and net answer 2) If the measured potential of a half-cell is 0.584 V when measured against the S.C.E,...
Answer both questions please
Suppose a sodium hydroxide solution is to be standardized against pure, solid, primary-standard grade KHP. If 0.4538 g of KHP requires 44.12 mL of the sodium hydroxide solution to reach a phenolphthalein endpoint, what is the molarity of the NaOH solution? Show your calculations. 5. If 36.32 mL of the NaOH solution described in question 4 was required to titrate a 5.00 mL sample of vinegar, calculate the molarity of acetic acid in the vinegar. Show...
A 0.4188-g sample of primary-standard Na2Co3 was treated with 39.50 mL of dilute perchloric acid. The solution was boiled to remove Co2 , following which the excess HclO4 was back-titrated with 9.35 mL of dilute NaOH . In a separate experiment, it was established that 26.75 mL of HCLO4 the neutralized the NaOH in a 25.00-mL portion. Calculate the molarities of HCLO4 the and NaOH .
A solution of the primary standard potassium hydrogen phthalate, KHC8H4O4, was prepared by dissolving 0.4877 g of potassium hydrogen phthalate in about 50 mL of water. Titration with a KOH solution required 35.31 mL to reach a phenolphthalein end point. What is the molarity of the KOH solution?
A solution of the primary standard potassium hydrogen phthalate, KHC8H4O4, was prepared by dissolving 0.4877 g of potassium hydrogen phthalate in about 50 mL of water. Titration with a KOH solution required 36.21 mL to reach a phenolphthalein end point. What is the molarity of the KOH solution?
A 0.3125 g sample of a primary Na2CO3 standard was treated with 40.00 mL of dilute perchloric acid. The solution was boiled to remove Co 2, and thereafter the excess HClO 4 was titrated by recoiling with 10.12 mL of dilute NaOH. In a separate experiment, it was established that 27.43 mL of HClO4 neutralized the NaOH in a 25.00 mL portion. Calculate the molarities of HClO4 and NaOH