The reaction is carried out in solution

CHEMISTRY · Single correct · A Level · Chemistry · Amount of substance · Amount of substance

Problem

The reaction

2\,\text{A} \rightarrow 3\,\text{B}

is carried out in solution. The concentration of A decreases from

0.500\,\text{M}

0.350\,\text{M}

over a 25 s interval, and no B is present initially. What is the concentration of B after 25 s? (a)

0.150\,\text{M}

(b)

0.300\,\text{M}

(c)

0.225\,\text{M}

(d)

0.175\,\text{M}