DATA TO BE USED Please use the data provided below to complete this assignment. Refer to...
please answer 1-5 and show and explain steps clearly, thank you :) 1. How many milliliters of 13.2 MH.SO, are needed to prepare 600.0 mL of 0.10 M H SOC? (4.5 mL) 2. 1.60 L of an aqueous solution containing 25.00 g of KCl dissolved in pure water is prepared. What is the molarity of the resulting solution? (0.210 M) 3. A solution containing 292 g of Mg(NO3)2 per liter has a density of 1.108 g/mL. What is the molality...
Show typed calculations to determine the mass of sodium sulfate necessary to prepare each of the three stock solutions in part A (These should be different values from the gram quantities listed in the ‘data to be used’). Clearly label each calculation. Mass used to prepare 5.0 g/L sodium sulfate solution: 0.494 g solution #1: make 100mL of a 5.0g/L sodium sulfate solution
PART A: I) How many grams of CoI2 are there in 225 grams of an aqueous solution that is 21.0 % by weight CoI2. II) An aqueous solution of iron(III) sulfate, Fe2(SO4)3, contains 9.24 grams of iron(III) sulfate and 17.6 grams of water. The percentage by mass of iron(III) sulfate in the solution is %. Part B: I) A solution was made by dissolving 2.39 g sodium chloride () in 27.9 g water (h20). What is the mole fraction of...
DATA TABLE Buffer A Buffer B Mass of NaC2H3O2 used to prepare buffer (g) 0.149 g 1.49 g Volume of buffer prepared (mL) 100.0 100.0 Molar concentration of HC2H3O2 in buffer (M) 0.1 1.0 Initial pH of buffer 4.24 4.33 Volume of 0.5 M NaOH to raise pH by 2 units (mL) 1.5 19.0 Volume of 0.5 M HCl to lower pH by 2 units (mL) 1.0 5.0 Volume of 0.5 M NaOH at equivalence point (mL) 1.75 19.75 3. ...
used to titrate a solution of iron(II) ions., with which it reacts according to Cerium(IV) sulfate Ce4(aq)Fe2 (aq)>Ce3*(aq) + Fe3 (aq) A cerium(IV) sulfate solution is prepared by dissolving 40.47 g of Ce(SO42 in water and diluting to a total volume of 1.000 L. A total of 19.41 mL of this solution is required to reach the endpoint in a titration of a 100.0-mL sample containing Fe(aq). Determine the concentration of Fe2 in the original solution It is desired precipitate,...
- P4(s) + O2(g) P4O6(S) If a mixture of 75.3 g of phosphorus and 38.7 g of oxygen produce 43.3 g of P4O6, what is the percent yield for the reaction? Q4. Hydroxylamine hydrochloride is a powerful reducing agent which is used as a polymerization catalyst. It contains 5.80 mass % H, 20.16 mass % N, 23.02 mass % 0, and 51.02 mass % CI. What is its empirical formula? Determine the molecular formula of the compound with molar mass...
PROCESSING THE DATA 1. COMPLETE DATA TABLE 2. Determine the volume of NaQH added at the equivalence point. 3. Calculate the number of moles of NaOH used. 4. See the equation for the neutralization reaction given in the introduction. Determine the number of moles of HCl used. 5. Recall that you pipeted out 10.0 mL of the unknown HCl solution for the titration. Calculate the HCl concentration. Trail 1 Trial 2 Concentration of NaQH 0.1 M 0 ml NaQH volume...
Use the References to access important values if needed for this question. You need to make an aqueous solution of 0.159 M sodium chloride for an experiment in lab, using a 125 ml volumetric flask. How much solid sodium chloride should you add? grams Submit Answer Retry Entire Group 8 more group attempts remaining Use the References to access important values if needed for this question. In the laboratory you dissolve 14.7 g of potassium sulfate in a volumetric flask...
help with 2 buffer questions please. data table and questions in pics thank you Buffer B Buffer A .0 39 3 Mass of NaC2H3O2 used to prepare buffer (g) NO0-0 20 Volume of buffer prepared (mL) 1.0 0.1 Molar concentration of HC2H3O2 in buffer (M) 4.13 4.23 3.7 Initial pH of buffer Volume of 0.5 M NAOH to raise pH by 2 units (mL) 37.5 4.2mL Volume of 0.5 M HCI to lower pH by 2 units (mL) 3,1 m35...
Chemistry 107 Problem Solving Handout #13 NameloMAS hoME2 1. Calculate the mass (m/m) percent of sodium iodide in solution prepared by dissolving 6.43 g of Nal in 85.0 g HO. How many grams of solute are dissolved in 35.0 g of 2.00 % ( m/m ) NaCl solution? 2. What is the volume (v/v) percent water in a solution containing 257 mL of ethyl alcohol and enough water to give a total volume of 325 mL? 3. 4. Determine how...