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What is the osmotic pressure, in atm, of a solution formed by dissolving 17.4 g of PbCl4 in 0.336 L of water at 62.2 oC? (R = 0.0821 L-atm/mol-K; 0 oC = 273 K)
a) The osmotic pressure of this solution is 20.4 atm.
b) The osmotic pressure of this solution is 1640 atm.
c) The osmotic pressure of this solution is 3.79 atm.
d) The osmotic pressure of this solution is 1430 atm.
e) The osmotic pressure of this solution is 0.758 atm.
KRB pelle technique, solvents, mulls, thin film plate technique. which one of the following methods is better
A sample of a refrigeration gas in a volume of 410 mL, at a pressure of 1.26 atm, and at a temperature of 11.0 °C, was compressed into a volume of 172 mL with a pressure
What is the total number of moles of electrons transferred in this reaction: 2 C7H16O + 21 O2 = 16 H2O + 14 CO2? What is the oxidation and reduction pathway?
A solution was prepared by mixing 70ml of 4.00 mol/L HCl and 30.0 mL of 8.00 mol/L HNO3. Water was then added until the final volume was 500ml. What is the [H+] and what is the pH ?
when 50 mL of water containing .5 mol HCL at 22.5 degrees C is mixed with 50.0 mL of water at 25 degrees C in a calorimiter, the temperature of the solution increases to 26 degrees C. How much heat was released by this reaction?
A piston has an external pressure of 8.00 torr How much work has been done if the cylinder goes from a volume of 0.130 liters to 0.450 liters.
A saturated solution of Na2SO4 with excess of the solid is present in equilibrium with its vapor in a closed vessel. Calculate the number of degrees of freedom, f, of the system.
A 15.0-g sample of a hydrocarbon is placed in a balloon at 1.00 atm and 25°C, and the volume of the balloon is 12.2 L. The hydrocarbon is 79.89% carbon and 20.11% hydrogen by mass. Determine the molecular formula of the hydrocarbon.
which effect on atomic size is more significant the nuclear charge or the energy level that electrons are filling?
Determine the numbers of moles of iron that would be formed from 6.2 moles of CO (carbon monoxide) combining with excess of iron (III) oxide (Fe2O 3 )?
what molecule would give the following mass spec data. this molecule shows three significant fragment ions. Alpha-fragmentation forms the m/z =59 base peak
What is the heat change in J associated with 73 g of solid butane at -147 C changing to liquid at -109 oC?
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