(Solved): An infectious mononucleosis antibody titer is performed on a \( 16 \mathrm{yr} \). old boy. A fourg ...

An infectious mononucleosis antibody titer is performed on a \( 16 \mathrm{yr} \). old boy. A fourgold dilution series is positive ant \( 1 / 4,1 / 16 \), and \( 1 / 64 \) but negative at \( 1 / 256 \). What is the antibody titer? \( 1 / 256 \) 64 \( 1 / 64 \) 256 Question 45 (? points) A 1 to 5 dilution was performed on a sample. The diluted value was analyzed and determined to be \( 100 \mathrm{mg} / \mathrm{dL} \). What is the concentration of the undiluted analyte? \( 500 \mathrm{mg} / \mathrm{dL} \) \( 50 \mathrm{mg} / \mathrm{dL} \) \( 5 \mathrm{mg} / \mathrm{dL} \) The linear range of an instrument requires a \( 1 / 100 \) dilution of normal serum for accurate readings of a test analyte. How much serum is required for each test if the test takes \( 10 \mathrm{~mL} \) of total diluted serum? \( 0.1 \mathrm{~mL} \) \( 1.0 \mathrm{~mL} \) \( 0.01 \mathrm{~mL} \) \( 0.001 \mathrm{~mL} \) Question 38 ( 2 points) What is the molarity of a solution containing \( 58.5 \mathrm{~g} \) of \( \mathrm{NaCL} \) in \( 2.0 \) liters? ( \( \mathrm{NW} \) \( \mathrm{NaCL}=58.5) \) \( 1 \mathrm{M} \) \( 0.5 \mathrm{M} \) \( .01 \mathrm{M} \)