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- You are preseted with a whitesid andteldthar due tecareless labeling wat dear ithe subatances Dack. AgCl, or NgCls When you transfer the sulid to a besker and add water, the slid diate an racear soluane Next a wte e molecta ti eeonic quation, and t-anieab bothiThe 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?
- Dilution 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 FalseQl is dissolved in 250 ml, what is the tutul normadily of A Sada- Lime Sample is go% NaoH and 10% CaO • If 3gm the Selution as abase ? How many milliliters of O.57 N H2 S4 would be requiresd to titrate 100 me of the Solution ? Ans.s (0.309 N, 60.59 ml)kindly help me to this question? Thank you.
- The pOH of an aqueous solution of 0.515 M phenol (a weak acid), C,H5OH, is Submit Answer Retry Entire Group 9 more group attempts remaining73 Al ihe school ey decided to adt sodum carbonae (NaCOJ tohe sampled wster in the school tankin order to restore he sttavalue close to The balanced equartion for the reaction is Na,Co.e) + 2HC (ag - 2Nac (ag • H0()• co; (al 731 Calcuate the mass of sodum cartonate (Na,CO.) required to neutralize each 1 dm' of the sample water 732 Ater the neutralization. the water tasted saty. Give a reason for the saly taste of the water Refer to the equation above.Cobalt that can be Oxidized by nitnc. is 6fmany metals Dne acid. Balance the follobing caction How many electone are transFeted and what would be the Loefficient Fo HzO in the balanced reoction 7 Co tNo 3" + H NO t H,D t Co * VVICTORY DATE: