If you put red blood cells into a very concentrated (10%) NaCl solution, what would happen?

When doing the glucose in drinks experiment I measured an absorbance reading of 0.002 for orange juice and 0.045 for iced tea which is essentially nothing, why would this be the case

Suppose a vial contains 2.3 cm3 of medication. The medication contains 69 mg of hydrocortisone. How many milligrams of hydrocortisone per cubic centimeter are in the vial? (Simplify your answer completely.)

What is the function of buffer systems in living organisms and why are they important in the chemistry of the circulatory system?

What do you mean by isotonic solution?

For the questions below be sure to show your work as well as the answer to the question. In this week's lab you made 100ml of 10x PBS by dissolving 8 g NaCl, 1.2g Na₂HPO4 and 0.2 g KH₂PO4 in water. You then adjusted the pH to 7.0. A) How many mg of KH₂PO4 did you weigh out? B) How many liters of 10x PBS did you make? C) What is the final concentration of NaCl in your solution? (The molecular weight of NaCl is 58.44 g/mol) D) What is the final concentration of Na₂HPO4 in your solution? (The molecular weight of Na₂HPO4 is 141.96 g/mol) E) What is the final concentration of KH₂PO4 in your solution? (The molecular weight of KH₂PO4 is 136.1 g/mol) F) What is the hydrogen ion concentration of your solution (pH=7.0)? G) If the initial pH of your solution was 6.29 would you need to add an acid or a base to adjust the pH of a solution to pH 7.0? 10x PBS is a concentrated stock solution that is used to make more dilute solutions of PBS. Starting with your 10xPBS stock solution, how would you…