Print Periodic Table Ebook Question 9 of 17 (1 point) x Incorrect x Incorrect Ca

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Print Periodic Table Ebook Question 9 of 17 (1 point) x Incorrect x Incorrect Calculate the osmotic pressure of each of the following aqueous solutions at 20.00 oC: Number a. 2.67 M methanol (CH3OH) 64.15 atm Number b. 7.33 mM MgCl2 0.053 atm Number c. 36.0 mL of glycerol (C3H8O3) in 250.0 mL of aqueous solution (density of glycero J 1.265 g/mL) 47.52 atm Number 32.84 d. 17.7 g of CaCl2 in 350 mL of solution atm C Try Again Q View Solution Explanation Progress k 8 9 10 11 12 13 14 15 16 17 Exit Activity

Explanation / Answer

Pi = icRT

here Pi = osmatic pressure need to calculate

i = want half facter which is 3 (because MgCl2---> Mg2+ + 2Cl-)

c = concentration given in 7.33 mM we need to convert in to moles so 7.33 x 10-3 moles

R = 0.0821 L atm K-1 mol-1

T = 200 + 273 = 473K

put all these in above equation

Pi = 3 x 0.082 x 7.33 x 10-3 x 473K

Pi = 0.854 atm

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