# chemistry-help!

posted by .

The initial rate of reaction for H2O2(aq) <-> H2O (l) 1/2 O2 (g)
is found to be 1.7x10(-3)M/s. Assume that this rate holds for 2 minutes. Start with 160ml of 1.60 M H2O2.
How many milliliters of O2 measured at 24C and 760mmHg , are released from solution in the first minute of the reaction?

I tried to calculate the new concentration of H2O2, assuming it was a zero order reaction from the units of the k. I used the eqn:
ln(conc(At))=-kt+ln(conc(Ao)).
I got k from using RxnRate=k*(conc(Ao)
Then i was thinking about finding the Ksp value and doing an ice table. Solving for the conc of O2, then using PV=nRT and the molarity to find the V. Is this method right or? :s

## Similar Questions

1. ### Chemistry

Hi can someone please help with this question, or atlest direct me in the right direction. Please and thank you. The initial rate of reaction H2O2(aq) --> H2O (l) + 1/2 O2(g) is found to be1.7*10^-3 M/s . Assume that this rate holds …
2. ### chemistry

can u help me in this question. The rate of appearance of I2 in aqueous solution, in the reaction of I^- ion with hydrogen peroxide, was found to be 3.7*10^-5 mol. L^-1.s^-1 over time interval. 2H^+(aq)+ 2I^-(aq)+H2O2-> I2(aq)+2H2O(l) …
3. ### chemistry

Which of the following rate laws suggests that the reaction probably occurs in a single step?
4. ### chemistry

Which of the following rate laws suggests that the reaction probably occurs in a single step?
5. ### Chemistry

In the reaction between H2O2 and I-, 15 mL of 0.30M KI, 65. mL of 0.10M H2O2 and 19 mL of 0.020M Na2S2O3 were mixed in a flask containing starch and buffer and the total volume was made up to 500mL with distilled water. The solution …
6. ### Chemistry

Which of the following rate laws suggests that the reaction probably occurs in a single step?
7. ### chemistry_toughhhh

Initial rate of rxn of H2O2(aq)->H2O+ 1/2 O2(g) is found at 1.7x10(-3)M/s and is constant for 2min. You start with 160ml of 16M H2O2. How many mL of O2 in one minute?
8. ### Chem-Repost

it wouldn't let me post after putting spaces in the url and everything, so i just copied and pasted the q instead :P sorry for all the messyness. i'll see if i can delete q's, in the mean time you can maybe look at this please?
9. ### Chemistry

In the reaction 2H2O2(aq)-->2H2O2 + O2 (g), There is intially 0.865 M H2O2. After 10.0 minutes, the molarity of H2O2 changes to 0.792 M. What is the rate of reaction in terms of H2O2?
10. ### Chemistry

The decomposition of hydrogen peroxide is first order in H2O2: 2H2O2(aq) → 2H2O(l) + O2(g) Rate = k [H2O2] How long will it take for half of the H2O2 in a 10-gal sample to be consumed if the rate constant for this reaction is …

More Similar Questions