Question

DATA & RESULTS When the lab was performed as described in your lab manual, the following times were recorded for each mixture to change from pale yellow to clear: Mix acetone HCI lodine water Time, 1 trial Time, 2 trial Temp 1 10.0 mL 10.0 mL 10.0 ml 20.0 ml 290 294 24.1°C 2 200 ml 10.0 mL 100 ml 10.0 ml 150 148 24.5°C تيره 10.0 mL 20.0 mL 10.0 mL 10.0 ml 146 142 24.6°C 4 100 ml 100 ml 20.0 mL 100 ml 577 599 23.9°C NOTE! This value was corrected on 29 June 2020! The rates of the reactions in the trials above depend on the concentrations of the reactants IN THE MIXTURES (NOT in the original stock solutions!). So you must first calculation the concentrations of acetone, H, and Iz in each mixture. You will notice that the lab manual has already provided the concentrations for mixture 1 as an example (on page 157, toward the bottom. These are calculated using the usual dilution formula M, V = M,V2. A note on significant figures: the concentrations of the stock solutions are shown in the lab manual with only one significant fgure each. But for your calculations, you should use the values with TWO significant figures as shown on the previous page of this dacument. Mixture i concentrations are given in the lab manual page 152 Mixture 2 1. What was the initial concentration of acetone in Mixture 27 2. What was the initial concentration of hydrogen lon In Mixture 2? 3. What was the initial concentration of iodine in Mixture 2? Mixture3 4. What was the initial concentration of acetone in Mixture 3? 5. What was the initial concentration of hydrogen ion in Mixture 3? 6. What was the initial concentration of iodine in Mixture 3? Mixture4 7. What was the initial concentration of acetone in Mixture 47 8. What was the initial concentration of hydrogen ion in Mixture 4? 9. What was the initial concentration of ladine in Mixture 4?

I just wanted to check if my answers were correct for the initial concentrations of mixture 4 #7-9.

Answer 1