What is the molar concentration of an aqueous sugar solution with an osmotic pressure of 318.4 mmHg at 25 oC? 1 atm = 760 mmHg and R = 0.0821 (L·atm)/(mol·K)  

What mass of platinum could be plated on an electrode from the electrolysis of a Pt(NO3)2 solution with a current of 0.500 A for 55.0 s?  The molar mass of platinum is 195.1 g∙mol–1.

What is the balanced equation when emits an alpha particle?

Which graph best represents the titration of ammonia with hydrochloric acid?

What galvanic cell can be constructed to yield the most positive standard cell potential using the materials available in the table? Standard Reduction Potentials Eored / V Cu2+ + 2e–→Cu +0.34 Cr3+ + 3e–→Cr –0.41 Ag+ + e–→Ag +0.80

For the reaction of nitrogen and oxygen to form nitrogen dioxide,                                            N2(g) + 2O2(g) ⇌ 2NO2(g)              Kc = 1.5×103 If the reaction mixture is found to contain 2.0 M NO2 and 0.10 M N2 and 0.10 M O2, what is the value of Q and what does this mean?

Two chromate salts, barium chromate (BaCrO4) and silver chromate (Ag2CrO4) are considered for solubility.  The solubility product constant, Ksp, of BaCrO4 is 8.5×10–11 and Ag2CrO4 is 9.0×10–12.  Which salt is more soluble in water and why?

Which aqueous solution will have the lowest freezing point?  

The reaction is run at two temperatures where temperature 1 is lower than temperature 2.  Which relationship is correct for either rate constant (k1 or k2) or activation energy (Ea,1 and Ea,2)?

In addition to dispersion forces, what intermolecular forces are present in a solution between methanol (CH3OH) and bromine (Br2)?