A reaction between substances A and B is representedstoichiometrically by A + B

Question

A reaction between substances A and B is representedstoichiometrically by
A + B C

The rate of the reaction depends only on the concentration of B. Aplot of [B] -1 vs time is found to belinear with a slope of 0.0330L/mol-s. If the initial concentrationof B is 0.660 mol/L , whatis the concentration of B after 10.0seconds? A reaction between substances A and B is representedstoichiometrically by
A + B C

The rate of the reaction depends only on the concentration of B. Aplot of [B] -1 vs time is found to belinear with a slope of 0.0330L/mol-s. If the initial concentrationof B is 0.660 mol/L , whatis the concentration of B after 10.0seconds?

Explanation / Answer

Since graph of 1/[B] vs time -> straight line -> B is secondorder Equation: 1/[B] = kt + 1/[B0] 1/[B] = (.0330)(10) + 1/(.660) [B] = .542 M

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