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
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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!
*10-19-1 A radioactive sample's half-life is 30.2 years 1 year - 365 days, 1 day - 24 hours, 1 hour 60 minutes, 1 minute - 60 seconds (a) Find its decay constant in year 1. Keep 4 decimal places. 0.6229 Correct (100,0%) Submit Find its decay constant in sl. Write the result in terms of 10 10,9 Keep 4 decimal places. 7.2764 Correct (100.0 Submit Case 1: The Initial sample is 3.30 kg. (b) What is...
I just need help figuring out which equations to use for part
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This is a PSYCH Statistical Math Question. I need help figuring
this out. I need to show work as well so I know how to do it.
What is the value of ΣΧ for the scores 1, 5, 2? 0 10 0 8 0 16 O 30 SHOW WORK
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