You are preparing a 10-fold serial dilution of a 40% glucose solution. A) What would the concentration (in %) of glucose be for the second dilution tube of the 10-fold dilution series? [ Select ] 20% 10% 2% 4% 0.4% B) You add 1.8 mL of water to each of 5 tubes as you prepare to make the 10-fold serial dilution. What volume of the 40% glucose solution would you need to add to 1.8 mL of water to achieve a 1:10 dilution? [ Select ] 20 µL 2 mL 200 µL 18 µL 180 µL C) The MW of glucose is 180. What is the molar (M) concentration of the 40% glucose solution? 2.2多重下拉选择题