Я не могу представить себе хорошие выходные без…

Саша – это человек, с ________________________ я всегда поговорить по душам.

Consider the following reaction below 4A (g) + 3X (g) → 7Y (g) + 5D (g) + 6E (g) If the rate of appearance of Y is 1.45 x 10-6 Ms-1, determine the rate of disappearance of A.

Determine the mass% of a solution containing 134.7 grams of fructose (C6H12O6) in 600.0 grams of water. 

The rate law for a hypothetical reaction was determined to be Rate=k[X]1/2[Z]2. What happens to the rate when X is increased by a factor of 9 (9x) and Z is quadrupled (4x)?

Pure liquid A mixes well with pure liquid B and the temperature decreases. Which of the following statements are correct for this process? The mixing process is Endothermic Exothermic Because the solution (formed after mixing) has Higher entropy than pure solute and pure solvent because more arrangements are possible Lower entropy than pure solute and pure solvent because less arrangements are possible As a result Liquid A is miscible with liquid B Liquid A is immiscible with liquid B  

Calculate pressure of nitrogen monoxide, NO necessary to generate an aqueous solution that is 0.0480 g/L in NO at 25 °C. The Henry’s law constant for NO in water at 25 °C is 0.0019 mol/(L-atm).

Which of the following statements describing the solubility of gases is/are correct? Increasing the temperature increases the solubility of a gas in water. Increasing the partial pressure of a gas decreases its solubility in water. Increasing the partial pressure of a gas increases its solubility in water. Increasing the temperature decreases the solubility of a gas in water.

In an experiment, 35.0 g of unknown non-electrolyte is dissolved into 450 mL of pure water and the solution has a new boiling point of 104.75o Determine the molar mass of the compound if the Kb of water is 0.512oC/m. (The density of water is 1.00 g/mL).

Calculate pressure of carbon dioxide, CO2 necessary to generate an aqueous solution that is 0.240 g/L in CO2 at 25 °C. The Henry’s law constant for CO2 in water at 25 °C is 0.034 mol/(L-atm)