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Chemistry the rate of reactions
Posted: Tue Mar 21, 2023 8:07 am
by taylorswift08
Under experimental conditions, at a temperature of 320°C, one mole of NOBr decomposes according to the reaction NOBr= NO +1/2 Br2. The coefficients before the formulas of the substances in the reaction are simultaneously the values of powers of their concentrations. Calculate how many moles of NOBr are left unreacted if it is heated for 5 hours and the rate constant is 2.2* 10^-5 mol^¹* s^-1
Re: Chemistry the rate of reactions
Posted: Tue Mar 21, 2023 9:32 am
by ChenBeier
Calculate the moles consumed = time × K
We have 1 mol NOBr - consumed moles = moles left
Re: Chemistry the rate of reactions
Posted: Tue Mar 21, 2023 11:28 am
by taylorswift08
is the moles consumed = time × K a formula that is givven in school or?
Re: Chemistry the rate of reactions
Posted: Tue Mar 21, 2023 12:08 pm
by ChenBeier
In the exercise K 2.2* 10^-5 mol^¹* s^-1 and time 5 h is given.
But probably has to use Arrhenius equation
A(t) = A0* exp(-kt)