When 2.60 g of a nonelectrolyte solute is dissolved in water to make 275 mL of solution at 29 °C, the solution exerts an osmotic pressure of 915 torr. What is the molar concentration of the solution? concentration: How many moles of solute are in the solution? mol moles of solute: What is the molar mass of the solute? molar mass: g/mol

1. What is the molal concentration of a sugar solution that freezes at -0.93°C? 2. The boiling point constant for CCl4 is 5.03°C, the boiling point of CCl4 is 7.70°C. Determine the boiling point of a solution made by dissolving 0.50 mole of a substance in 100.0 g of CCl4. 3. What would be the freezing point of sugar solution, which contains 150.0 g of solute in 0.50 L of H2O?

Calculate the molality of a solution formed by adding 2.60 g NHCl to 19.1 g of water. molality: m NH₂Cl

A solution is made by dissolving 0.500 g of a solute in enough water to make 100.0 ml of solution. The solution has an osmotic pressure of 2.50 atm at 25 degrees C. If each molecule of the solute dissociates into 2 particles, what is the molar mass of the solute?

Thank you.

Students are asked to mix 10 milliliters of a 0.10 molar solution of hydrochloric acid with 10milliliters of a 0.1 molar solution of sodium hydroxide to determine the temperature changes ofthe new solutions that are formed. After completing the experiment, you are instructed todispose of these new solutions by pouring them down the drain while adding excess amounts ofwater. Should you? Explain your answer.

An aqueous solution containing 9.15 g of a certain non-electrolyte has a volume of 590 mL. The solution's osmotic pressure at 25 °C was found to be 1.75 torr. Calculate the molar mass of the compound. 2.17×10-1 g/mol 2.17×102 g/mol 1.38×104 g/mol 1.65×105 g/mol 1.67×107 g/mol

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A solution is prepared by dissolving 1.494 g of potassium permanganate, KMnO4 (molecular weight = 158.034 g/mol), with enough water to make 406.59 mL of solution. What would the osmotic pressure be at 25.0�? Assume the solute is completely ionic.  115.2774 torr    57.6387 torr  1.1377 atm  0.5689 atm

Why can measuring osmotic pressure help you find the molar mass of a solute? Assume that the solute is not an electrolyte. Choose the best answer. Choose one: Osmotic pressure depends on the hydrogen bonding capacity of the solute. Osmotic pressure depends on the molarity of the solute. Osmotic pressure depends on the mass of the solute. Osmotic pressure depends on the chemical identity of the solute. The osmotic pressure inside human cells is about 8 atm. at 20.85 °C. My advisor once misread a protocol I gave him, and without thinking washed the cells with a solution of 1.88 M NaCl. He immediately swore. What happened to the cells? Choose one: O The cells absorbed water and exploded. The high concentration of salt made the water boil at room temperature. The high concentration of salt made the water freeze at room temperature. The cells lost their water to the solution and collapsed.