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2. Rust stains can be removed by washing a surface with a dilute solution of oxalic...
one practical application of oxalic acid (H2C2O4) is as a rust remover. Rust is primarily composed...
one practical application of oxalic acid (H2C2O4) is as a rust remover. Rust is primarily composed of Fe2O3, which reacts with oxalic acid according to the unbalanced equation shown below. Fe2O3 (s) + H2C2O3 (aq) --> Fe(C22O4)3-3 (aq) + H2O (l) + H+ (aq) Calculate the number of milligrams of Fe2O3 that can be removed using 500.0 mL of 0.1068 M H2C2O4.
6. Oxalic acid H2C2O4 is a diprotic acid and can be used, in dilute form, as...
6. Oxalic acid H2C2O4 is a diprotic acid and can be used, in
dilute form, as wood bleach. pKa1 = 1.237 and pKa2=4.187
A. How many milliliters of 0.0500 M NaOH would be required to
completely neutralize 10.0 mL of 0.100 M H2C2O4? (5 pts)
B. Estimate the pH at the first equivalence point of the
titration. (6 pts)
C. What is the pH at the second equivalence point of the
titration. (8 pts)
Please help with work shown, especially...
b. Determine what mass of rust can be removed by 540 g of oxalic acid? ....
b. Determine what mass of rust can be removed by 540 g of oxalic acid? . Cyanogen, C2N2 is a colorless, poisonous gas that can be prepared by the following: +2 CuCN (a) CN2(+2 K,SO4 (ag) 2 CuSO4 () +4 KCN (a) o a. Determine how many moles of KCN are required to react with 3.7 moles of CuSO4 b. Determine how many moles of cyanogen are produced from 1.75 moles of CuSO4 c. Determine how many moles of K2SO4...
04 (a) Calcium ions can be determined by precipitation of the oxalate according to the equation:...
04 (a) Calcium ions can be determined by precipitation of the oxalate according to the equation: Ca2+ (aq) + C2O42- (aq) = CaC204 (s) The solid may then be filtered off, washed and oxalic acid is regenerated by the addition of excess sulfuric acid. The amount of oxalic acid is then quantified by titration using potassium permanganate according to the equation: H2C204 + MnO4 + H+ = CO2 + Mn2+ + H20 (unbalanced) In an experiment to find the concentration...
WILL GIVE THUMBS UP 3 attempts left Check my work Enter your answer in the provided...
WILL GIVE THUMBS UP
3 attempts left Check my work Enter your answer in the provided box. points A sample of 0.5760 g of an unknown compound containing barium ions (Ba) is dissolved in water and treated with an excess of Na,C0y. If the mass of the BaCO, precipitate formed is 0.5343 . what is the percent by mass of Ba in the original unknown compound? ebook Print References 3 attempts left Check my work Enter your answer in the...
Chlorine gas can be prepared in the laboratory by the reaction of hydrochloric acid with manganese(IV)...
Chlorine gas can be prepared in the laboratory by the reaction of hydrochloric acid with manganese(IV) oxide. 4 HCl(aq) + MnO,(s) —MnCl(aq) + 2 H2O(l) + Cl2(g) A sample of 42.1 g Mno, is added to a solution containing 42.1 g HCI. What is the limiting reactant? MnO2 OHCI What is the theoretical yield of CI,? theoretical yield: CI, If the yield of the reaction is 77.5%, what is the actual yield of chlorine? actual yield: g CI Dimethyl oxalate,...
1. What is the pH of a solution made by mixing 100.mL each of two solutions...
1. What is the pH of a solution made by mixing 100.mL each of two solutions of HCl(aq), one with pH = 2.00 and one with pH = 3.00? 2. What volume of 0.150M NaOH is required to reach the endpoint in the titration of 25.00mL of 0.0850M H2C2O4? Note that oxalic acid is diprotic. 3. Indicate whether the each of the following chemical reactions are A) A Lewis acid/base reaction, B) An acid/base reaction, but not a Lewis acid/base...
Additional Problem 6.098 Your answer is partially correct. Try again. A dilute solution of hydrochloric acid...
Additional Problem 6.098 Your answer is partially correct. Try again. A dilute solution of hydrochloric acid with a mass of 614.08 g and containing 0.30664 mol of HCl was exactly neutralized in a calorimeter by the sodium hydroxide in 618.91 g of a comparably dilute solution. The temperature increased from 16.663 to 19.946 °C. The specific heat of the HCl solution was 4.031 Jug-1.°C-1; that of the NaOH solution was 4.046 Jug-1.00-1. The heat capacity of the calorimeter was 77.99...
21. The titration of 25.0 ml. of an unknown concentration HSO, solution requires 83.6 ml of...
21. The titration of 25.0 ml. of an unknown concentration HSO, solution requires 83.6 ml of 0.12 M LIOH solution. What is the molarity of the unknown HSO, solution (in MJ? (Write the balanced reaction first) A. 0.20 M B. 0.40 M C. 0.10 M D. 0.36 M E. 0.25 M 22. Complete and balance the following acid-base reaction. What volume of 0.200 M HCI is required for the complete reaction of 1.00 g of Ca(OH): (FW - 74.10g/mol? Ca(OH)(s)...
n a pink aqueous solution of potassium permanganate, faintly addified with dilute sulfuric acid was treated the reaction took place with the evolution of gas bubbles, and the pink solution turned...
n a pink aqueous solution of potassium permanganate, faintly addified with dilute sulfuric acid was treated the reaction took place with the evolution of gas bubbles, and the pink solution turned colorless. Further chemical analysis revealed that the evolved gas was oxygen, and the resulting solution contains potassium sulfate and manganese () sulfate; water was also formed during the same reaction. Please with 10% aq. hydrogen peroxide, answer the followings: 1) Write down the balanced chemical equation for this reaction....
6. Oxalic acid H2C2O4 is a diprotic acid and can be used, in
dilute form, as wood bleach. pKa1 = 1.237 and pKa2=4.187
A. How many milliliters of 0.0500 M NaOH would be required to
completely neutralize 10.0 mL of 0.100 M H2C2O4? (5 pts)
B. Estimate the pH at the first equivalence point of the
titration. (6 pts)
C. What is the pH at the second equivalence point of the
titration. (8 pts)
Please help with work shown, especially...
b. Determine what mass of rust can be removed by 540 g of oxalic acid? . Cyanogen, C2N2 is a colorless, poisonous gas that can be prepared by the following: +2 CuCN (a) CN2(+2 K,SO4 (ag) 2 CuSO4 () +4 KCN (a) o a. Determine how many moles of KCN are required to react with 3.7 moles of CuSO4 b. Determine how many moles of cyanogen are produced from 1.75 moles of CuSO4 c. Determine how many moles of K2SO4...
04 (a) Calcium ions can be determined by precipitation of the oxalate according to the equation: Ca2+ (aq) + C2O42- (aq) = CaC204 (s) The solid may then be filtered off, washed and oxalic acid is regenerated by the addition of excess sulfuric acid. The amount of oxalic acid is then quantified by titration using potassium permanganate according to the equation: H2C204 + MnO4 + H+ = CO2 + Mn2+ + H20 (unbalanced) In an experiment to find the concentration...
WILL GIVE THUMBS UP
3 attempts left Check my work Enter your answer in the provided box. points A sample of 0.5760 g of an unknown compound containing barium ions (Ba) is dissolved in water and treated with an excess of Na,C0y. If the mass of the BaCO, precipitate formed is 0.5343 . what is the percent by mass of Ba in the original unknown compound? ebook Print References 3 attempts left Check my work Enter your answer in the...
Chlorine gas can be prepared in the laboratory by the reaction of hydrochloric acid with manganese(IV) oxide. 4 HCl(aq) + MnO,(s) —MnCl(aq) + 2 H2O(l) + Cl2(g) A sample of 42.1 g Mno, is added to a solution containing 42.1 g HCI. What is the limiting reactant? MnO2 OHCI What is the theoretical yield of CI,? theoretical yield: CI, If the yield of the reaction is 77.5%, what is the actual yield of chlorine? actual yield: g CI Dimethyl oxalate,...
Additional Problem 6.098 Your answer is partially correct. Try again. A dilute solution of hydrochloric acid with a mass of 614.08 g and containing 0.30664 mol of HCl was exactly neutralized in a calorimeter by the sodium hydroxide in 618.91 g of a comparably dilute solution. The temperature increased from 16.663 to 19.946 °C. The specific heat of the HCl solution was 4.031 Jug-1.°C-1; that of the NaOH solution was 4.046 Jug-1.00-1. The heat capacity of the calorimeter was 77.99...
21. The titration of 25.0 ml. of an unknown concentration HSO, solution requires 83.6 ml of 0.12 M LIOH solution. What is the molarity of the unknown HSO, solution (in MJ? (Write the balanced reaction first) A. 0.20 M B. 0.40 M C. 0.10 M D. 0.36 M E. 0.25 M 22. Complete and balance the following acid-base reaction. What volume of 0.200 M HCI is required for the complete reaction of 1.00 g of Ca(OH): (FW - 74.10g/mol? Ca(OH)(s)...
n a pink aqueous solution of potassium permanganate, faintly addified with dilute sulfuric acid was treated the reaction took place with the evolution of gas bubbles, and the pink solution turned colorless. Further chemical analysis revealed that the evolved gas was oxygen, and the resulting solution contains potassium sulfate and manganese () sulfate; water was also formed during the same reaction. Please with 10% aq. hydrogen peroxide, answer the followings: 1) Write down the balanced chemical equation for this reaction....
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