A metal M forms a volatile carbonyl complex $M(CO)_x$. 0.525g of this complex is heated in a closed vessel of volume 250 mL at $50^\circ C$. The pressure inside the vessel after complete decomposition of the complex is 746 Torr. If the gas constant R is 0.0821 L atm $K^{-1} mol^{-1}$, what is the value of x in the formula $M(CO)_x$? (Assume the metal M does not contribute significantly to the pressure)

A mixture of two volatile liquids A and B shows a negative deviation from Raoult's law. Which of the following statements is INCORRECT regarding this mixture?

Which of the following is NOT a method for expressing the concentration of a solution?

What is the molality of a solution where the mole fraction of the solute is 0.02 and the solvent is water?

A solution is prepared by dissolving 10 g of glucose in 190 g of water. What is the mass percentage of glucose in the solution?

A binary liquid mixture of components A and B exhibits an azeotrope at a specific composition. Which of the following statements is ALWAYS true about this azeotropic mixture?

What is the mole fraction of the solute in a 1.00 m aqueous solution of glucose?

Which concentration term is independent of temperature?

If 20 g of solute is dissolved in 80 g of solvent, what is the mass percentage of the solute?

If 1 kg of solvent contains 2 moles of solute, what is the molality of the solution?

A solution is prepared by dissolving 10 g of sucrose ($C_{12}H_{22}O_{11}$) in 200 g of water. What is the mole fraction of sucrose?