Half life of A is 54 min & half life of B is 18 min. Find the time when concentration of A = 16B

Half life of A is same as that of mean life of B

There are two species A & B with half lives 54 & 18 minutes resp. The time after which concentration of A is 16 times that of B will be

For an elementary reaction , X(g)toY(g)+Z(g) the half life period is 10 min. In what period of time would the concentration of X be reduced to 10% of original concentration?

For a first order reactions, the half -life is 10 mins. How much time in minutes will it take to reduce the concentration of reactant to 25% of its original concentration ?

Half-life period of a first order reaction is 10 min. Starting with initial concentration 12 M, the rate after 20 min is

At particular concentration , the half life of the reaction is 100 minutes. When the concentration of the reactant become double half life becomes , 25 minutes , then what will be the order of the reaction ?