The chemical equation below shows the photosynthesis reaction.

The rate of decay of a chemical involved in a reaction that is second order (bimolecular) in one reactant A is given by: = k [AJ

anyanavicka [17]

Explanation:

$2A\rightarrow products$

According to mass action,

$\textrm{rate}=-\dfrac{\Delta[\textrm A]}{2\Delta t}=k[\textrm A]^2$

Where, k is the rate constant

So,

$\dfrac{d[A]}{dt}=-k[A]^2$

Integrating and applying limits,

$\int_{[A_t]}^{[A_0]}\frac{d[A]}{[A]^2}=-\int_{0}^{t}kdt$

we get:

$\dfrac{1}{[A]} = \dfrac{1}{[A]_0}+kt$

Where,

$[A_t]$ is the concentration at time t

$[A_0]$ is the initial concentration

Half life is the time when the concentration reduced to half.

So, $[A_t]=\frac{1}{2}\times [A_0]$

Applying in the equation as:

$t_{1/2}=\dfrac{1}{k[A_o]}$

7 0

4 years ago

Suppose in an experiment to determine the amount of sodium hypochlorite in bleach, 0.0000524 mol K I O 3 were titrated with an u

11111nata11111 [884]

Answer: The amount of sodium thiosulfate required is $2.62\times 10^{-5}$ moles

Explanation:

Moles of $KIO_3$ solution given = 0.0000524 moles

The chemical equation for the reaction of potassium iodate and sodium thiosulfate follows:

$2KIO_3+Na_2S_2O_3\rightarrow K_2S_2O_3+2NaIO_3$

By Stoichiometry of the reaction:

2 moles of potassium iodate reacts with 1 mole of sodium thiosulfate

So, 0.0000524 moles of potassium iodate will react with = $\frac{1}{2}\times 0.0000524=0.0000262mol$ of sodium thiosulfate

Hence, the amount of sodium thiosulfate required is $2.62\times 10^{-5}$ moles

4 0

3 years ago

Draw the structure(s) of the branched alcohol(s) with the chemical formula c5h12o.

xxTIMURxx [149]

Answer:

The possible branched chain structure of alcohols with chemical formula C5H12O are following.

3-methylbutan-2-ol
3-methylbutan-1-ol
2,2-dimethylpropan-1-ol
pentan-3-ol
2-methylbutan-1-ol
2-methylbutan-2-ol

Structure:

Please see attachment

Download docx

7 0

4 years ago

Gamma rays are often used to kill microorganisms in food, in an attempt to make the food safer. Some people contend that this ir

kumpel [21]

While treating food with gamma rays kills microorganism by damaging their DNA, the energy of gamma rays rips off electrons from atoms hence ionizing them (causing free radicals). However, gamma rays do not make the food atoms radioactive. The body has a natural mechanism of riding the body of free radicals. However, large quantities of radicals in the body can cause damage.

7 0

4 years ago

What number of particles will BaBr2 make in solution? 1 2 3 or 4?

olchik [2.2K]

One Ba2+ and two Br- ions will be there.

Answer is 3

3 0

3 years ago