I need some help figuring this one out and how to do it.
Homework Answers
we have:
[S]o = 100 [let initial concentration be 100]
t = 185.0 days
k = 7.95*10^-3 days-1
use integrated rate law for 1st order reaction
ln[S] = ln[S]o - k*t
ln[S] = ln(100) - 7.95*10^-3*1.85*10^2
ln[S] = 4.605 - 7.95*10^-3*1.85*10^2
ln[S] = 3.134
[S] = e^(3.134)
[S] = 22.9 M
11.9 of 100 remains which is 22.9 %
Answer: b
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I need some help figuring this one out and how to do it.
20.) Ozone decomposes to dioxygen as per the equation: 2 03 (g) → 3 O2 (g). If the rate of O3 decomposition is found to be 0.50 mbar.s-(a bar is a unit of pressure: 1 bar = 0.987 atm), what is the rate of O2 production? a. 0.75 mbaros- b. 0.335 mbar:s-1 c. 1.0 mbaros- d. 1.5 mbar.s-1
Please help! This is my last one and I never really done a decay
problem like this...any worked out explanation would help
1/15/2016 03:00 PM 80/100 Gradebook Print Calulator Periodic Table Question 5 of 5 Incorrect A radioactive isotope decays according to the equation where N, is the amount of sample at time t, No is the origin al amount of sample, and A is the decay constant. c measurements of the remaining An unknown amount of an unidentified isotope...
I have a test tomorrow and really need help seeing how to do
numbers 1,2,3 and 4. If you can start with telling me what equation
to use, then solving using that equation, it would be much
appreciated.
facweb.bhc.edu Practice Kinetics Solve the following use appropriate units and sig figs. QUESTIONS Half lives and rate constants 1. Calculate the first-order rate constant for the radioactive decay of radium. The 1590 years. 2. Calculate the rate constant for the decay of...
I need help figuring out what the molecular formula and
structure look like based on the molecular weight 142 AMU and also
based in the info given in the IR, HNMR, and CNMR.
IR/HNMR/CNMR Unknown #101 MW=142 AMU Czol D2 | M 1 ppm 200 150 160 140 120 100 ao so 10 20 rpm
please help with b-d!
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I need help figuring out how to get this hope you can help
me.
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