2.0 mg phenol/ 60min/ 100mL (molecular weight of phenol = 94) is expressed as how many IU?

Out of the below choices, an increased level of circulating thyroid hormone levels are most indicative of

Express 0.0018 μmol/min/mL as IU.

A stock standard of urea nitrogen contains 20 mg/mL of urea nitrogen. How would you make 200 mL of a 20 mg/dL working standard?

Calculate the pH of an acetate buffer composed of 0.30  M sodium and 0.10 M acetic acid (pKa for acetic acid is 4.76)

For an AST determination, 0.20 mL of serum was used. The change in absorbance was measure at 340 nm with a 3.0 mL reaction mixture. The initial reading was 0.54 A and the reading after 5 minutes was 0.32 A. Report the AST value in IU.

Express the following numbers in conventional form: 66 x 10-7 5.4 x 10-2 31 x 105 0.7 x 103

Calculate the pH of a 0.0001 N solution of NaOH

Convert the following to the corresponding Celsius or Fahrenheit scale. 37.5oC 100oC -20oC 40oF 72oF

Indicate how 7.64 should be reported to the nearest tenth.