PLTW, MI Unit 1 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