the boiling BUl 59. me is an enzyme that cleaves cell walls. A 0.100-L sample of
ID: 228841 • Letter: T
Question
the boiling BUl 59. me is an enzyme that cleaves cell walls. A 0.100-L sample of a solution of lysozyme that contains 1.32 × 10-3 atm at 25 °C, what is the molar mass of of the enzyme exhibits an osmotic pressure of sozyme? osmotic pressure of a solution containing 7.0 g of insulin per liter is 23 torr at 25 °C. What is the molar 60. The mass of insulin? t. The osmotic pressure of human blood is 7.6 atm at 37 °C. What mass of glucose, CaHz0s, is required to make 00 of aqueous solution for intravenous feeding if body temperature, 37 °C? the solution must have the same osmotic pressure as blood at inn noint of a snlution of dibromobenzene, C6H4Br2, in 0.250 kg of benzene, if the solution . .Explanation / Answer
59)
Osmotic pressure = (w/M*1/v) * s * T = 1.32*10^-3 atm
w = mass of the substance = 0.75g
M = molar mass of the substance
S = solution constant = 0.083 atm/mol K
T = Temperature in Kelvins = 25+273 = 298K
V = volume of the solution = 0.1 L
1.32 * 10^-3 = 0.75/M * 1/0.1 * 0.083 * (25+273)
M = molar mass of the compound = 140534.1 g/mol
60)
Osmotic pressure = (w/M*1/v) * s * T = 23/760 atm
w = mass of the substance = 7g
M = molar mass of the substance
S = solution constant = 0.083 atm/mol K
T = Temperature in Kelvins = 25+273 = 298K
V = volume of the solution = 1 L
23/760 = 7/M * 1/1 * 0.083 * 298
M = molar mass of the compound = 5721.08 g/mol
62)
Osmotic pressure = (w/M*1/v) * s * T = 7.6 atm
w = mass of the substance
M = molar mass of the substance glucose = 6*12+12*1+6*16 = 180g/mol
S = solution constant = 0.083 l atm/mol K
T = Temperature in Kelvins = 25+273 = 298
V = volume of the solution = 1 L
7.6 = w/180*1/1 * 0.083 * 298
w = mass of Glucose = 55.3085 g
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