Posted by **Anonymous** on Tuesday, August 20, 2013 at 9:40pm.

I think I have these figured out correctly but I'm not sure if I might have converted in the wrong direction;

The rate of the enzyme activity of a certain reaction is

a. 0.0027 μmol/min/mL.

Express it as __ μmol/min/L

My answer: 2.7 μmol/min/L

b. 15,000 μmol/min/L.

Express it as __ μmol/min/mL

My answer: 15 μmol/min/mL

c. 0.0018 μmol/min/mL.

Express it as __ IU

My answer: 1.8 IU

d. producing 2 mg phenol/60min/100 mL (m.w. phenol = 94).

Express this value in IU.

My math:

2 mg phenol/60min/100 mL

2/94 0.0213 mmol/60min/100mL

0.0213 x 1000 21.3 umol/60min/100mL

21.3/60 0.355 umol/min/100mL

3.55 umol/min/L or 3.55 IU

- Chemistry/lab math -
**bobpursley**, Tuesday, August 20, 2013 at 9:47pm
all correct.

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