Make oleic acid vesicles by making a solution of 0.5mL of 50mM oleic acid, 1 mM HPTS in 0.2 M Tris-HCl, 50 mM NaCl, pH 8.5 (i.e. buffer A) in a microcentrifuge tube in the following order. How much HPTS should you add? How much oleic acid?

To determine the pKa of PNP, a student needs to prepare a solution of 42.0 µM PNP in 30.0 mM acetate pH 5.2, with a total volume of 1,000 µL.  Stock solutions of 0.200 mM PNP and 90.0 mM acetate pH 5.2 are available.  Calculate the volume of dH2O required to make the solution (in µL).

The Ksp for cobalt (II) hydroxide is 5.92x 10- at 25°C. What is the molarity solubility of Co(OH)2 at this temperature? Respond with the correct number of significant figures in scientific notation (Use E notation and only 1 digit before decimal e.g. 2.5E5 for 2.5 x 10)|

Please don't use Ai solution

A sample of river water at 20°C is analyzed and the following parameters are found for it: Phenolphthalein alkalinity = 5.8 ×10-6 M, Total alkalinity = 2.8 × 10-5 M; pH = 8.5 Hardness = 10.0 mg CaCO3/L; [Mg2+] = 3.8 x 10-5 M Calculate the concentrations of [Ca2+], [CO3 2-] and [HCO3 - ] in this water sample.

Incorrect Row 2: Your answer is wrong. In addition to checking your math, check that you used the right data and DID NOT round any intermediate calculations. Calculate the solubility at 25 °C of AgCl in pure water and in 0.34 M NaCN. You'll probably find some useful data in the ALEKS Data resource. Round your answer to 2 significant digits. Solubility in pure water: Solubility in 0.34 M NaCN: 1.3 × 10™³M ☐ x10 OM ☑

P UTF-8 Chapter 12 Solutions-20 x+ s.content.blackboardcdn.com/5b19550b0b538/10621560?X-Blackboard-Expiration3164905200001 neet.docx Edits will not be automatically saved. Save now amond A 14 三 三 三兰 7. What is the molarity of a solution when 2.0 L. of a 6.0 M HCI solution is added to water so that the final volume is 6.0 L? (5 pts) 8. When placed in cach of the following, indicate if a red blood cell will Becrenati (4 pts

The Ksp for an ionic solid, AB2, is 3.559*10-11. Calculate the molar solubility, in µM, of this ionic solid in a solution of 0.013 M A+ ions. Recall, 106 µM = 1 M.

A 2.0 mL of acid was added to three experiments whichs  volumes are 2mL ,1mL, and 2 mL. if the  avaerage Molarity of NaOH is 1.02 x10^-1 1. Find the molarity of the unknown acid for each experiment. 2. find the volumes of the unknown acid for each of the esperiment.

20 ml of a 100 mg/l phenol solution in water is placed in a vial with 20 ml of a fluorocarbon solvent. The organic phase (fluorocarbon solvent) is immiscible with water. The vial is completely filled with the two phases, thus there is no air or contaminant volatilization. After an hour of agitation, the two phase system reaches equilibrium. The two phases are separated and the fluorocarbon is analyzed for total phenol. The resulting phenol concentration in the organic phase is 16.0 mg/l. Compute the unitless partition coefficient (KF-W) for phenol. Compare your calculation with KF-W obtained from an empirical relationship: log10KF-W 0.71 - 0.862log10 CWsat. KF-W means the partition between the fluorocarbon solvent, F, and water, W. Only typed solution.