The reaction `2A rarr B` is first order in "A" with a rate constant " of `2.8times10^(-2)s^(-1)` .How long will it take (nearly ) for "A" to decrease from 0.88M to 0.22M?

For the reaction A rarr B that is first-order in A, The rate constant is 2.08xx10^(-2)s^(-1) . How long would it take for [A] to change from 0.100M to 0.0450M ?

A first order reaction has a rate constant of 15 xx 10^(-3) s^(-1) . How long will 5.0 g of this reaction take to reduce to 3.0 g ?

The reaction A(g) to B(g) + 2C(g) is a first-order reaction with a rate constant of 2.303 xx 10^(-3)s^(-1) . Strating with 0.1 moles of 'A' in a 2 litre vessel, find the concentration of A after 301 sec when the reaction is allowed to take place at constant pressure at 300 K.

The reaction A (g) rarr B(g) + 2C (g) is a first order reaction with rate constant 3465 xx 10^(–6) s^(–1) . Starting with 0.1 mole of A in 2 litre vessel, find the concentration of A after 200 sec., when the reaction is allowed to take place at constant pressure and temperature.

A first order reaction has a specific reaction rate of 10^(-3) s^(-1) . How much time will it take for 10 g of the reactant to reduce to 2.5 g . (Given log4 = 0.6021 ).

The rate constant for a reaction of zero order in A is 0.0030 mol L^(-1)s^(-1) . How long will take for the initial concentration to fall from 0.10 M to 0.075 M?