You are given a protein solution with a concentration of 0.15 mg/ml.

v. suppose that we want to prepare 100 microliters of 10 micrograms/microliters solution. how much of h2o and protein stock do we need to add to obtain the target concentration and volume? (the concentration is not greater in the question, you need to convert it to micrograms/ then it should make sense)

6,666.66 micro liter of water and protein stock we will need to add to obtain the target concentration and volume.

Explanation:

Concentration of given solution

1 mL = 1000 μL , 1 mg = 1000 μg

The volume of the given solution =

Concentration of required solution =

Volume of required solution =

6,666.66 micro liter of water and protein stock we will need to add to obtain the target concentration and volume.

answer : one can design an experiment using a liquid and an additive that can be added to the liquid and observe the chemical changes in the reaction species.

one would need a beaker which is filled with a known amount of the liquid in which thermometer is placed to measure the temperature changes; after addition of the additive to the liquid solution one can note down the temperature change and find whether the reaction is endothermic or exothermic in nature. by subtracting the initial temperature value with the final temperature one can find the temperature changes.

various combinations of liquid and additive can be used. liquid in this case can be a known quantity of water and additives can be epsom salt or without epsom salt the experiment can be conducted to notice the changes. water and ice, hydrogen peroxide and dry yeast, vinegar and baking soda,etc.