week2.study.guide.docx - CLINICAL CHEMISTRY Week 2 Study Guide Points Possible = 24 Points Received 1 Determine the number of significant figures in the

week2.study.guide.docx - CLINICAL CHEMISTRY Week 2 Study...

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CLINICAL CHEMISTRYWeek 2 – Study GuidePoints Possible = 24Points Received ______________1.Determine the number of significant figures in the following valuesa.4.833 g4b.200.0 mL4c.400.7 IU/mL4d.0.0034mg2.Solve these problems to the correct number of significant figures3.Round off the numbers to 3 significant figures4.Perform the following conversionsc.5 gm =5000 mg d.80 mg =0.08 gms e.1 dL f.1 dL = 0.1 Lg.300 ul =5.Convert 8.2 mg/dL calcium to mmol/LCa = 40 g/mole2.0 mmol/L6.Convert 155 mg/dl glucose to mmol/L7.What is the molarity of a solution that contains 18.7 g of KCL in 500 mls?
8.How many grams of NaOH are required to prepare 2.5 L of a 4M solution?
9.How many grams of HCL are needed to make 1L of a 2N solution?
10. Calculate the concentration in mEq/L of a NaCl solution that contains 7.80 g of NaCl in 500 mL of solution.
11. Determine the weight of NaCl necessary to prepare 250 ml of a solution with a concentration of 4.0%w/v.12. How many grams of sulfuric acid, H2SO4(mw = 98 g), are required to prepare1 L of a 3%w/vsolution? 13. How many ml of 50%v/vacetic acid are needed to make 1 L of 5%v/vacetic acid?14. To prepare 2 L of a 5M solution of HCL, how many L of a stock 10M solution will you need?
15. What is the percent (w/v) of a solution containing 100 g of NaCl made up to 500 ml with Type 1 water?16. How would you make 20 milliliters of a 1:20 dilution of a standard with DI water.17. How would you make 40 mls of the above standard.18.Using 100 ul of a patient’s serum, how would you make a 1:5 dilution with saline?19.A patient with pancreatitis had an amylase result above the linear range. A dilution was made using 0.100 ml of the patient’s serum and 0.200 ml of saline. The result obtained was 356 IU/L. What is the result you will report out?20.A patient with prostate cancer has a PSA that needs diluted. To make a 1:10 dilution using 100 ul of serum, how much PSA diluent will you add? If the result obtained is 210ng/ml, what is the result you will report out?

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