A 1.25 L solution is made with 1.3 g of methanol, CH 3 OH , in...
A 1.25 L solution is made with 1.3 g of methanol, CH 3 OH , in water at 45 ∘ C . What is the osmotic pressure of the solution? Use R=0.08206 L atm mol K for the gas constant.
Homework Answers
What is the osmotic pressure of a solution made from 22.3 g of methanol (MM =...
What is the osmotic pressure of a solution made from 22.3 g of methanol (MM = 32.04 g/mol) that was added to water to make 251 mL of solution at 25.0 °C?
. 0.275 L of solution is prepared by dissolving 2.50 g of an unknown molecular compound...
. 0.275 L of solution is prepared by dissolving 2.50 g of an unknown molecular compound in enough water. The osmotic pressure of this solution is 1.98 atm at 27 °C. (R = 0.08206 L·atm/mol·K) a) Determine the molar mass of the molecular compound. (7 pts) b) If you need to prepare 0.275 L of AlCl3 solution with the same osmotic pressure of the above solution, what mass of AlCl3 (MW = 133.33 g/mol) would you need to weigh out?
f 0.357 g of CHi gas is introduced into an evacuated 1.75 L flask at 25...
f 0.357 g of CHi gas is introduced into an evacuated 1.75 L flask at 25 °C, what is the pressure inside the flask? (R= 0.08206 L-atm/mol-K) a. 0.311 atm b. 0.261 atm c. 0.419 atm d. 4.99 atm e. 0.952 atm Calculate the density (in g/L) of CH&g) at 75 °C and 2.1 atm. (R 0.08206 L-atm/mol-K) a. 1.2 g/L b. 5.5 g/L c. 0.85 g/L d. 0.18 g/L e. 3.2 g/L wer Robert Boyle observed that the volume...
Colligative Properties 1a When a solution is made from 25.9 g of an unknown nonelectrolyte dissolved...
Colligative Properties 1a When a solution is made from 25.9 g of an unknown nonelectrolyte dissolved in 167.6 g of solvent, the solution boils at 63.24 °C. The boiling point of the pure solvent and its Kb are 59.02 °C and 2.09 °C/m, respectively. Calculate the molar mass of the unknown electrolyte in g/mol. Report your answer to TWO places past the decimal 1b When a solution is made from 39.5 g of an unknown nonelectrolyte dissolved in 109.1-2.47 °C....
A solution is made by mixing 140. g of water and 91. g of methanol (CH...
A solution is made by mixing 140. g of water and 91. g of methanol (CH OH Calculate the mole fraction of water in this solution. Be sure your answer has the correct number of significant digits.
2a Calculate the freezing point of a solution that is made from 39.9 g of a...
2a Calculate the freezing point of a solution that is made from 39.9 g of a nonelectrolyte (ℳ = 142.4701 g/mol) dissolved in 186.3 g of solvent. The solvent freezes at 1.24 °C and its Kf value is 2.09 °C/m. Report your answer to TWO places past the decimal. 2b The solubility of carbon dioxide gas at 37.3 °C and a carbon dioxide pressure of 554 mmHg is 4.04 × 10−3 g/L. What is the Henry's Law constant in mol⋅L−1⋅atm−1?...
A 36.5% by mass of C6H12O6, aqueous solution is prepared in the lab. the density of...
A 36.5% by mass of C6H12O6, aqueous solution is prepared in the lab. the density of the solution is 2.97 g/ml. what is the osmotic pressure of the solution at 42 OC ( R=0.08206 L*atm/mol*K)
Question 21 of 52 Submit What is the osmotic pressure of a solution made from 22.3...
Question 21 of 52 Submit What is the osmotic pressure of a solution made from 22.3 g of methanol (MM = 32.04 g/mol) that was added to water to make 1241 mL of solution at 25.0 °C? atm (1 2 3 C +/- x 100
i need help with the last four questions along with step by step he appropriate gas law to solve questions 1-6. Show work. (2 pts) A certain amount of a gas at a constant temperature has a pressur...
i need help with the last four questions along with
step by step
he appropriate gas law to solve questions 1-6. Show work. (2 pts) A certain amount of a gas at a constant temperature has a pressure of 5.50 atm and a volume of 10.0 mL. If the volume is decreased to 125.0 mL, what is the resulting pressure of the gas? : 924 a4m 125 O P v (2 pts) If 0.722 L of a certain gas at...
8. What is the final boiling point of a 1.25 molal solution of sugar in water?...
8. What is the final boiling point of a 1.25 molal solution of sugar in water? The Kb for water is 0.512 C/m. (For sugar i = l.) 9. A solution was prepared by dissolving 0.52 mol hexane into 400g CCl4. What is the change in freezing point of this solution? Carbon tetrachloride has a freezing point depression constant of 29.8 Cm,and freezes at-23。. 10. A solution was prepared by dissolving 0.26 moles of ethanol (C2HsOH) into 750g Diethyl ether....
f 0.357 g of CHi gas is introduced into an evacuated 1.75 L flask at 25 °C, what is the pressure inside the flask? (R= 0.08206 L-atm/mol-K) a. 0.311 atm b. 0.261 atm c. 0.419 atm d. 4.99 atm e. 0.952 atm Calculate the density (in g/L) of CH&g) at 75 °C and 2.1 atm. (R 0.08206 L-atm/mol-K) a. 1.2 g/L b. 5.5 g/L c. 0.85 g/L d. 0.18 g/L e. 3.2 g/L wer Robert Boyle observed that the volume...
A solution is made by mixing 140. g of water and 91. g of methanol (CH OH Calculate the mole fraction of water in this solution. Be sure your answer has the correct number of significant digits.
Question 21 of 52 Submit What is the osmotic pressure of a solution made from 22.3 g of methanol (MM = 32.04 g/mol) that was added to water to make 1241 mL of solution at 25.0 °C? atm (1 2 3 C +/- x 100
i need help with the last four questions along with
step by step
he appropriate gas law to solve questions 1-6. Show work. (2 pts) A certain amount of a gas at a constant temperature has a pressure of 5.50 atm and a volume of 10.0 mL. If the volume is decreased to 125.0 mL, what is the resulting pressure of the gas? : 924 a4m 125 O P v (2 pts) If 0.722 L of a certain gas at...
8. What is the final boiling point of a 1.25 molal solution of sugar in water? The Kb for water is 0.512 C/m. (For sugar i = l.) 9. A solution was prepared by dissolving 0.52 mol hexane into 400g CCl4. What is the change in freezing point of this solution? Carbon tetrachloride has a freezing point depression constant of 29.8 Cm,and freezes at-23。. 10. A solution was prepared by dissolving 0.26 moles of ethanol (C2HsOH) into 750g Diethyl ether....
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