calculate the amount (mL) of H2O2 in 15 mL of 3% H2O2 0.15 mL 0.30 mL 0.45 mL 0.60 mL
QUESTION 2 Which of the following is the catalyst used in the experiment? A. H2O2 B. glass rod C. KI D. O2
QUESTION 3 Identify the gas that is liberated during the reaction between H2O2 and KI A. H2O(g) B. O2(g) C. I2(aq) D. H2O2(g)
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calculate the amount (mL) of H2O2 in 15 mL of 3% H2O2 0.15 mL 0.30 mL...
The decomposition of hydrogen peroxide (H2O2(aq)) is proposed to follow a reaction mechanism of Step 1: H2O2(aq) + Br(aq)-H2O(l) + BrO (aq) Step 2: Bro (aq) + H2O2(aq),H2O(l) + O2(g) + Br(aq) What is the catalyst, and what is the effect of having a catalyst present? Periodic Table and Datasheet Br is the catalyst, and the reaction follows a faster pathway with Br than without BrO is the catalyst, and the reaction follows a faster pathway with Bro-than without Bro...
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1.Calculate the free energy(ΔG°)of the following reactions: a)H2(g) + O2(g)→ H2O2(g) b)H2O2(g) + H2(g) → 2 H2O (g) How do the free energy values for these two reactions compare to the free energy of the combustion of hydrogen gas? Hint: (ΔG) is a state function, therefore Hess’s law is applicable.The combustion of hydrogen gas is modeled by the overall equation is 2 H2(g) + O2(g)→ 2 H2O(g). 2.Based on your calculations in the previous question and your understanding of reaction...
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2 H2O2(aq) + 2 H2O(l) + O2(g) 5. Hydrogen peroxide decomposes according to the equation above. a. An aqueous solution of H2O, that is 6.00 percent H,O, by mass has a density of 1.03 g ml. Calculate each of the following. (i) The original number of moles of H2O, in a 125 ml sample of the 6.00 percent H2O2 solution (ii) The number of moles of O,(g) that are produced when all of the H2O2 in the 125 mL sample...
UW 3. H2O2(aq) → H2O(1) + (g) 4. Type of chemical reaction: Questions and Problems 01 What evidence of a chemical reaction might you see in the following cases? Refer to Table 1. a. dropping an Alka-Seltzer tablet into a glass of water b. bleaching a stain c. burning a match d. rusting of an iron nail
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The reaction mechanism that has been proposed for the decomposition of H2O2 by iodide ion is: H2O2 + I- → H2O + IO- (slow) H2O2 + IO- → H2O + O2 + I- (fast) Which one of the following statements is true? Select one: a. The reaction is second order with respect to I-. b. I- is an intermediate. c. The reaction is first order with respect to I-. d. IO- is a catalyst. e. The reaction is zero order...
H2O2(aq) --> H2O(l) + O2(g) 1. identify half rxns and overall balanced equation. 2. what is E° of the cell? 3. [H2O2] = 0.2 M, Po=0.21 atm, other species still have concentration of 1.0 M. What is cell potential?
1. A 75.0-mL sample of 0.200 M Lead(II) nitrate, Pb(NO3)2, is reacted with 75.0 mL of 0.450 M KI solution and the following precipitation reaction occurs. Pb(NO3)2(aq) + 2KI(aq) → PbI2(s) + 2KNO3(aq) (a) Determine the limiting reactant. (b) How many grams of PbI2 will be formed if the yield is 100%? (c) What is the percent yield if 6.45 g of PbI2 were obtained? (2) K2Cr2O7(aq) + FeCl2(aq) → CrCl3(aq) + Fe(NO3)3(aq) (a) Determine the net ionic reactions and...