The Kc for the following reaction is 5.0 at 100 ∘C. 2NO2(g)⇌N2O4(g. )If an equilibrium mixture contains 0.53 M NO2, what is the molar concentration of N2O4 ?

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Asolution contains 225 g of sodium chloride, nacl, dissolved in enough water to make a 0.25 l of solution. what is the molarity of the solution? a. 3.88 m, b. 1.03 m, c. 1.5 m, d. 15.5 m

Adrop of acetone (nail polish remover) has a mass of 35 mg and a density of 0.788 g/cm3. what is its volume in cubic centimeters?