What is the density, d, of a substance with a volume of v = 12.1 cm3 and a mass of m = 83.3 g ?

Density = Mass / Volume
Density = 83.3g / 12.1 cm³
Density = 6.88g/cm³

Rate law for this reaction israte of the reaction = k[a]²[b].second order in a  means concentration of a in power of two, and  first order in b means concentration of b in power of one.

Hcn is your answer my guy : )