The chemical formula of the anticonvulsant drug was phenobarbital C12H12O3N2. The molar mass of phenobarbital is 232.24 g/mol. Calculate the percent carbon in phenobarbital to four significant figures.

Imagine that twenty i. u.’s of enzyme z were catalyzing the above reaction for one minute, under vmaxconditions, in a 3.00 ml assay volume. the assay is buffered with 20 mm phosphate buffer, ph 7.60. what will the ph be at the end of that one minute?