A 10.0 mL solution of 0.030 M AgNO3 was titrated with 0.015 M
NaBr in the cell. S.C.E. || titration solution | Ag(s) Find the
cell voltage for 0.4, 10.0, 20.0, and 27.0 mL of titrant. (The Ksp
of AgBr = 5.0 ✕ 10−13.) 0.4 V 10.0 V 20.0 V 27.0 V
Which of the following solutions has the highest osmotic pressure?
(a) 100 g of a polymer with MW=1,000 g/mol in 1 L of water. (b) 30 g of glucose (MW=180 g/mol) in 1 L of water. (c) 6 g of NaCl (MW=58 g/mol) in 1 L of water. (d) 3 g of Ethanol (MW=46 g/mol) in 1 L of water.
Which of the following affect the internal osmotic pressure of a
system, such as a cell?
Group of answer choices
Osmotic pressure increases with a decrease in volume and
increases with an increase in concentration.
Osmotic pressure is independent of volume changes.
Osmotic pressure increases with a decrease in volume and
decreases with an increase in concentration.
Osmotic pressure decreases with a decrease in volume and
decreases with an increase in concentration.
Osmotic pressure decreases with a decrease in volume...
1. Water potential is the
(a)difference between pressure potential and osmotic
potential.
(b)summation of pressure potential and solute potential.
(c)difference between pressure potential and solute
potential.
(d)product of pressure potential and osmotic potential.
(e)combination of turgor pressure and pressure potential.
2. Which of the following are plant secondary metabolites that
defense against herbivores? (can choose more than one answers)
(1) Lectins
(2) Cytokinin
(3) Cyanide
(4) Phospholipids
(5) Protease Inhibitors
3. Which of the following is a function mediated by...
Calculate the osmolality and osmotic pressure of a 2.0x10-4 M
solution of K2SO4 at 20.0 degrees C. Make sure to include correctly
written dissociation equation.
Which of the following has the lowest osmotic pressure at 25 C?
Assume that the ionic compounds dissociate completely.
a) 0.10 M aqueous sodium chloride
b) 0.10 M aqueous calcium chloride
c) 0.10 M aqueous aluminum chloride
d) 0.10 M aqueous glucose
consider a device to register osmotic pressure, in
which it is placed a solution containing 20 grams of hemoglobin in
a liter of solution in the right compartment and pure water in the
left compartment is placed. Explain the phenomenon that occurs and
determine the molecular weight of the hemoglobin if at equilibrium,
the water height of the right column is 77.8 mm above the left
column if the temperature remains at 35 ° C
order the following aqueous solutions in the order of increasing
osmotic pressure.
0.100 M NiBr3
0.100 M MgSO4
0.150 M Na2SO4
0.150 M NH4NO3
0.250 M fructose