2. (10 points) A solution at T - 25 °C is formed by dissolving 4.38 g...
A solution is prepared by dissolving 78 0 g of glucose (C6H1206 ) in 150 g of water. The final volume is 228 ml Calculate the Molarity (MM of glucose is 180 18 g/mol and MM of water is 18.02 g/mol) For units do not use fractional units like g/mol or g/mL QUESTION 23 A solution is prepared by dissolving 78.0 g of glucose (C6H1208) in 150 g of water. The final volume is 228 ml Calculate the Molality (MM...
Question 2 0/1 pts A solution was prepared by dissolving 8.03 g of (NH4)2SO4 (MW = 132.14 g/mol; specific volume = .565 ml/g) in 35.0 ml of water. The final volume of the solution is __ml. Question 3 0/2 pts A solution was prepared by dissolving 8.03 g of (NH4)2SO4 (MW = 132.14 g/mol; specific volume = .565 ml/g) in 35.0 ml of water. The concentration of (NH4)2SO4 in the solution is ___%(w/v).
A solution was made by dissolving 5.60 mg of hemoglobin in water to give a final volume of 1.00 mL. The osmotic pressure of this solution was 2.14×10-3 atm at 25.0°C. Calculate the molar mass of hemoglobin, which is a molecular compound and a nonelectrolyte. Give your answer in g/mol.
A saturated solution is made by dissolving 0.327 g of a polypeptide (a substance formed by joining together in a chainlike fashion some number of amino acids) in water to give 1.70 L of solution. The solution has an osmotic pressure of 4.19 torr at 26 °C. What is the approximate molecular mass of the polypeptide?
What is the osmotic pressure of a solution made by dissolving 50.0 g of glucose, C6H12O6, in enough water to form 475.0 mL of solution at 32.0 ∘C ?
What is the osmotic pressure of a solution made by dissolving 75.0 g of glucose, C6H12O6, in enough water to form 500.0 mL of solution at 45.0 ∘C ?
What is the osmotic pressure of a solution made by dissolving 25.0 g of glucose, C6H12O6, in enough water to form 800.0 mL of solution at 10.0 ∘C ?
What is the osmotic pressure of a solution made by dissolving 70.0 g of glucose, C6H12O6, in enough water to form 150.0 mL of solution at 9.00 ∘C ?
What is the osmotic pressure of a solution made by dissolving 35.0 g of glucose, C6H12O6, in enough water to form 625.0 mL of solution at 9.00 ∘C ?
(10 pts) A solution is prepared by dissolving 1.239 grams of hydrochloric acid, HCI, in enough water to make 250.0 mL of solution. A 25.00 mL sample of this solution is diluted with water to a final volume of 100.0 mL. Now, you take 10.00 mL of that solution and dilute it to 100.00 mL What is the molarity of the final solution? (HCI 36.45 g/mol)