Part A: Osmotic pressure = MRT(M is mol/lit, R =0.0821 lit.atm K-1&T is absolute temperature)
Osmotic pressure = (4.71/58.4)0.345x 0.0821x315= 0.719 atm.
Part B :
Osmotic pressure =(5.63/82)0.052x0.0821x293=0.085 atm
Problem 12.118 Part A What osmotic pressure (in atmospheres) would you expect for each of the...
18. What osmotic pressure in atmospheres would you expect for each of the following solutions? a) 5.00 g of NaCl in 350.0 mL of aqueous solution at 50 °C b) 6.33 g of sodium acetate, CH3CO2Na, in 55.0 mL of aqueous solution at 10 °C. 19. Human blood gives rise to an osmotic pressure of approximately 7.7 atm at body temperature, 37.0 °C. What must the molarity of an intravenous glucose solution be to give rise to the same osmotic...
What osmotic pressure (in atmospheres) would you expect for each of the following solutions? 5.70 g of NaCl in 357.0 mL of aqueous solution at 54 ∘C. 6.63 g of sodium acetate, CH3CO2Na, in 56.5 mL of aqueous solution at 11 ∘C.
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Part B 29.03 g CsH1206 in 1.21 L of solution Submit Request Answer Part C 36.5 mg NaCl in 108.6 mL of solution Submit X Incorrect; Try Again; 4 attempts remaining Provide Feedback
please answer both
Part B 27.03 g CH20. in 1.12 L of solution E AO M= 0.14 Submit Previous Answers Request Answer X Incorrect; Try Again; 3 attempts remaining Review your calculations; you may have made a rounding error or used Part 35.0 mg NaCl in 104.4 mL of solution 10 AED O ?
1) At physiological temperature (37OC) the osmotic pressure of blood is 7.65 atm. What concentration (% W/V) of potassium chloride (KCl, MW = 74.5) solution has the same osmotic pressure of blood? Assume the specific gravity of the solution is 1. 2)An ophthalmic (eye drop) formulation contains 100 mEq of sodium chloride (molecular weight = 58.5 g/mole). Calculate the amount (in grams) of sodium chloride needed for the formulation. 3)Methanol (CH3OH, MW = 32) is a nonelectrolyte. What is the...
Part A What mass of sucrose (C12H22011) should be combined with 501 g of water to make a solution with an osmotic pressure of 8.55 atm at 300 K ? (Assume the density of the solution to be equal to the density of the solvent.) IVO A ¢ A A O 2 ? Submit Previous Answers Request Answer X Incorrect; Try Again The volume of the solution, in liters, should be included in the calculation. The osmotic pressure, II, is...
Part A Describe how you would make 400.0 mL of a 0.400 M NaOH solution from a 20.0 M stook NaOHI solution. Express your answer with the appropriate units Dilute Value Units of the 20.0 M stock solution to a final volume of 400.0 mL Part A CH3NH2 Express your answer as a chemical expression. Submit Previous Answers Request Answer Incorrect; Try Again; 4 attempts remaining Part B C,HsN Express your answer as a chemical expression. 圏? Part C CI...
A
195 mL sample of ocean water contains 7.1 g of NaCl
TemID=138520971&offset=next Chem 3A-80061,80062_Saihong.Chen_2020 Sprin Part A What is the molarity of the solution with respect to NaCl? Express your answer using two significant figures. VAXO ? Submit Previous Answers Request Answer * Incorrect; Try Again; 19 attempts remaining Provide Feedback
I don't understand what I'm missing:
pH=-log(1.85x10-5)+log(.49/.65)
= 4.69728
=4.70 (right?)
Part B What is the pH of a solution that is 0.49 M in sodium acetate and 0.65 M in acetic acid? (for acetic acid K, is 1.85x10.) IVO ACOM O a ? 4.71 O Check the rounding in your final answer. No credit lost. Try again. Submit Previous Answers Request Answer
Part B, C
Part B
Please
<CHM 116 ASU West Chapter-17 Homework Problem 17.28 - Enhanced - with Feedback 20 of 29 Review Constants | Periodic Table A buffer contains 0.19 mol of propionic acid CH COOH) and 0.28 mol of sodium propionate (C2H5COONa) in 1.20 L. What is the pH of the buffer after the addition of 0.01 mol of NaOH? Express the pH to two decimal places. You may want to reference (Pages 721 - 729) Section 17.2...