1. In Part 1A of the experiment, your first mixture (Mixture I) will be made fro
ID: 228646 • Letter: 1
Question
1. In Part 1A of the experiment, your first mixture (Mixture I) will be made from the following reactants, with water as the solvent: 0.0 mL 4.0 M acetone10.0 mL 1.0 M HCI 10.0 mL 0.0050 M +20.0 mL H20 Use the dilution formula (CiVI-C2V2) to calculate the initial concentrations of acetone, H' (from HCl), and iodine (I2) in the reaction mixture. Show your work, and place your answers below. [You can also fill in the boxes in Table 1B.] acetone] M; 2. Using the reaction mixture in Problem 1, a student found that it took 320 seconds for the color of the Iz to disappear. Remember: initial means the initial concentration of a component in the mixture at the start of the reaction. LL a. What was the rate of the reaction? Hint: rate rate b. Write the rate law for the reaction as it would apply to the mixture. (Fill in numbers and units for the rate and concentrations of each reactant). Rate = c. What are the unknowns that remain in the equation in Part b?Explanation / Answer
1)
Molarity of acetone = Volume of acetone/(Total volume of solution) * Molarity of original acetone solution
= 10/(10+10+20+10) * 4M
= 0.8M
Molarity of H+= Volume of HCl/(Total volume of solution) * Molarity of original HCl solution
Molarity of HCl = Molarity of H+ (since HCl is a very strong acid solution)
= 10/(10+10+20+10) * 1M
= 0.2M
Molarity of I2 = Volume of I2 /(Total volume of solution) * Molarity of original I2 solution
= 10/(10+10+20+10) * 0.0050M
= 0.0010M
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