The partition coefficient between ligroin and water
The partition coefficient between ligroin and water for solute A is 4. What weight of A would be removed from a solution of 12 g of A in 100 mL of water by a single extraction with 100 mL of ligroin?
Expected delivery within 24 Hours
Hydrochloric acid is sold as a concentrated aqueous solution. If the molarity of commercial HCL is 12.0 and its density is 1.18g/cm3 Calculate the weight percentage of HCl in the solution.
Describe how you would prepare 1.00L of 0.75 M barium hydroxide solution starting with 6.00 M barium hydroxide solution.
What mass of sucrose should be combined with 537 mL of water to make a solution with an osmotic pressure of 8.55 atm at 290 K ? (Assume the density of the solution to be equal to the density of the solvent.)
Based on the average number of moles of IO3- in your samples, and the initial volume of those samples, what is the solubility of Ca(IO3)2 in mol/L of the saturated solution in pure water?
Find the heat of combustion in kJ/g for each gas. These values are valid at 25°C, where the water produced by the reaction is in the liquid state.
A certain first-order reaction (A->products) has a rate constant of 6.60×10-3 s^-1 at 45 C. How many minutes does it take for the concentration of the reactant, [A] , to drop to 6.25 % of the original concentration?
What is the pressure exerted onto the closed end of an apparatus if the atmospheric pressure is 720 torr and the height of the water is 22.3 cm?
If the temperaure changes from 22.0oC to 275oC and the specific heat of aluminum is .900 J/goC, how much energy, in J, was required?
1957478
Questions Asked
3,689
Active Tutors
1433981
Questions Answered
Start Excelling in your courses, Ask a tutor for help and get answers for your problems !!
In three sentences summarize the paragraph to answer the question What Role Do Children Play in Their Own Development?
Problem: How can i rephrase this paragraph to answer the question What Role Do Children Play in Their Own Development?
A second critical question about social development concerns the extent to which children contribute to their own development.
Post an explanation of what is rewarding the adolescent-aged cyberbullying behavior. Your explanation should be informed by social psychology theory
Answer the following in a few simple sentences: What is a "post reinforcement pause" What is a benefit of variable ratio over fixed ratio schedules of reinforce
Question: A psychological dysfunction refers to Group of answer choices a breakdown in emotional functioning
Do you think it is possible to combine client-centered and existential approaches in therapy? Why or why not?