MI 1.4 Serial Dilution Practice

Front

If the concentration of tube 1 is 150 ng/ml and 1 ml of sample is moved each time into 24 ml of diluent to complete 3 dilutions from the first tube, what is the concentration in tube #4 or the third dilution?

Back

0.0096 ng/ml

Front

If 1 mL sample is put into tube #1 that has 49 mL of diluent, what is the tube dilution?

Back

1/50

Front

If the concentration of the stock solution of 50 ng/ml, what is the concentration of a tube with final dilution of 1/1250?

Back

0.04 ng/mL

Front

If you have a stock solution of 200 ng/mL and you dilute it 1/4000, what is the final concentration?

Back

0.05 ng/mL

Front

A sample with a concentration of 80 ng/mL is serially diluted by transferring 2 mL into 18 mL of diluent for each step. What is the concentration after two such dilutions?

Back

0.8 ng/mL

Front

If 0.5 mL of a solution is added to 9.5 mL of diluent, what is the tube dilution?

Back

1/20