Two people are pushing on a shopping cart from opposite sides. When will the motion of
1 answer:
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Answer : The time passed in years is
Explanation :
Half-life of carbon-14 = 5730 years
First we have to calculate the rate constant, we use the formula :
Now we have to calculate the time passed.
Expression for rate law for first order kinetics is given by:
where,
k = rate constant =
t = time passed by the sample = ?
a = initial amount of the reactant disintegrate = 15.3
a - x = amount left after decay process = 14.8
Now put all the given values in above equation, we get
Therefore, the time passed in years is
Complete Question
The complete question is shown on the first uploaded image
Answer:
The correct place to click on any of the double peak showing between 2500 and 3000 on the uploaded question
Explanation:
The group which is being highlighted is an Aldehyde functional group denoted by this structure ()
This groups stretch on the infrared spectrometer gives two medium intensities peaks
Its stretch comes at 2820 - 2850 peak 1
and at 2720 - 2750 peak 2
So the correct click would be on any of the two peaks between 2500 - 3000 region
