If 162.35 g aluminum hydroxide are dissolved in 6750 mL of solution, what is the concentration of the solution?
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<u>Answer:</u> The amount remained after 151 seconds are 0.041 moles
<u>Explanation:</u>
All the radioactive reactions follows first order kinetics.
Rate law expression for first order kinetics is given by the equation:
where,
k = rate constant =
t = time taken for decay process = 151 sec
= initial amount of the reactant = 0.085 moles
[A] = amount left after decay process = ?
Putting values in above equation, we get:
Hence, the amount remained after 151 seconds are 0.041 moles