A $0.100 M$ aqueous solution of the base $\mathrm{HB}$ has an osmotic pressure of $2.83$ atm at $25^{\circ} \mathrm{C}$. Calculate the percent ionization of the base.

For the reaction $2 \mathrm{A}(g)+\mathrm{B}(g) \longrightarrow 3 \mathrm{C}(g)$ a . determine the expression for the rate of the reaction in terms of the change in concentration of each of the reactants and products. b. when A is decreasing at a rate of 0.100 M/s, how fast is B decreasing? How fast is C increasing?

Benzene has a heat of vaporization of 30.72 kJ/mol and a normal boiling point of $80.1^{\circ} \mathrm{C}$. At what temperature does benzene boil when the external pressure is 445 torr?

Acetic acid has a normal boiling point of 118 °C and a $\Delta H_{vap}$ of 23.4 kJ/mol What is the vapor pressure (in mmHg) of acetic acid at 40 °Celsius?

A) 127 mmHg

B) 6.32 $\times$ 10$^{-21}$ mmHg

C.) 4.56 $\times$ 10$^3$ mmHg

D) 759 mmHg

A $0.036 M$ aqueous nitrous acid $\left(\mathrm{HNO}_2\right)$ solution has an osmotic pressure of $0.93 \mathrm{~atm}$ at $25^{\circ} \mathrm{C}$. Calculate the percent ionization of the acid.

How are integrated rate laws used to determine reaction order? What is the order in reactant if a plot of

The natural logarithm of [reactant] vs. time is linear?

A solution of $6.85 \mathrm{~g}$ of a carbohydrate in $100.0 \mathrm{~g}$ of water has a density of $1.024 \mathrm{~g} / \mathrm{mL}$ and an osmotic pressure of $4.61 \mathrm{~atm}$ at $20.0^{\circ} \mathrm{C}$. Calculate the molar mass of the carbohydrate.

In the nuclear industry, chlorine trifluoride is used to prepare uranium hexafluoride, a volatile compound of uranium used in the separation of uranium isotopes. Chlorine trifluoride is prepared by the reaction $\mathrm{Cl}_{2}(g)+3 \mathrm{F}_{2}(g) \longrightarrow 2 \mathrm{ClF}_{3}(g)$. Write the equation that relates the rate expressions for this reaction in terms of the disappearance of $\mathrm{Cl}_{2}$ and $\mathrm{F}_{2}$ and the formation of $\mathrm{ClF}_{3}$.

What is meant by the term molecular mass, and why is the molecular mass that we calculate generally an average molecular mass

What happens to the polarity of oxygen atoms as they transform from molecular oxygen, O2, into water molecules, H2O?

What is the molecular shape of a water molecule $\ce{(H2O)}$?

Calculate the molecular mass of $\ce{CH3OH}$.

A quantity of $7.480 \mathrm{~g}$ of an organic compound is dissolved in water to make $300.0 \mathrm{~mL}$ of solution. The solution has an osmotic pressure of $1.43$ atm at $27^{\circ} \mathrm{C}$. The analysis of this compound shows that it contains $41.8$ percent $\mathrm{C}$, $4.7$ percent $\mathrm{H}, 37.3$ percent $\mathrm{O}$, and $16.3$ percent $\mathrm{N}$. Calculate the molecular formula of the compound.

A solution containing $0.8330 \mathrm{~g}$ of a polymer of unknown structure in $170.0 \mathrm{~mL}$ of an organic solvent was found to have an osmotic pressure of $5.20 \mathrm{mmHg}$ at $25^{\circ} \mathrm{C}$. Determine the molar mass of the polymer.