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QUESTION 1 Solution A has 40% sucrose and Solution B has 20%...
Consider two solutions with the following molarities, separated by a semi-permeable membrane: Solution A: 0.25 M...
Consider two solutions with the following molarities, separated by a semi-permeable membrane: Solution A: 0.25 M NaCl Solution B: 0.05 M NaCl In which direction will water diffuse?
a. Consider these two solutions: Solution A is prepared by dissolving 5.00 g of MgCl2 in...
a. Consider these two solutions: Solution A is prepared by dissolving 5.00 g of MgCl2 in enough water to make .250 L of solutions, and Solution B is prepared by dissolving 5.00 g of KCl in enough water to make .250 L of solution. Which direction will solvent initally flow if these two solutions are seperated by a semipermeable membrane? b. Assuming that the volumes of the solutions described in question 4 are additive and igoring any effects that gravity...
2-27. What volume of a 6.0%(m/V) solution of ethanol contains 30 g of ethanol A) 6,0...
2-27. What volume of a 6.0%(m/V) solution of ethanol contains 30 g of ethanol A) 6,0 mL B) 10.ml C) 50 mL D) 5.0 mL E) 30.ml 7 2-28. How many 1:10 serial dilutions are needed to prepare a pH 4 solution from 0.1 M hydrochloric acid A) 1 B) 2 C) 3 D) 4 E) 5 2-29. How many grams of glucose should be weighed out to make 1 liter of a rehydration solution that contains 75 mmol of...
Question 1 (0.25 points) What is the molar concentration of sucrose (C12H22011) in a solution made...
Question 1 (0.25 points) What is the molar concentration of sucrose (C12H22011) in a solution made by dissolving 33.95g of sucrose in enough water to make 500.0mL of solution? Use the Periodic Table in Appendix A of your textbook and round to an appropriate number of sig figs. Your Answer: Answer units Question 2 (0.25 points) What is the molar concentration (M) of potassium acetate in a solution made by dissolving 10.83g of potassium acetate in enough water to make...
I need help with filling out the chart in the second picture, the first photo is...
I need help with filling out the chart in the second picture,
the first photo is the data needed to answer the questions
Figure 4.7 Osmosis demonstration. Athistle tube, covered at the broad end by a differential contains distilled water. b. The solute (starch is unable to pass the through in both directions. There is a net movement of water town and lower water concentration. c. Due to the incomi ally permeable membrane, contains a arch o n through the...
1. A batch of cells are found to contain 300 mM glucose and 150 mM CaCl2...
1. A batch of cells are found to contain 300 mM glucose and 150 mM CaCl2 inside the cell. The cell membrane has pores which are permeable to glucose but not to ions. These cells are then placed in a NaCl solution which has an osmolarity of 450 milliosmoles. What happens to the cells after the solution comes to equilibrium? a. The cells remain the same size as they were originally b. The cells swell c. The...
the concentration in %(m/v) of a solution prepared by dissolving 50.0 sucrose in 220 mL of...
the concentration in %(m/v) of a solution prepared by dissolving 50.0 sucrose in 220 mL of ethanol. hat is the concentration in ppm of a solution that contains 0.234 g of lactic acid dissolved in 350 mL of aqueous solution? h) How many grams of glucose are present in 850 mL of a 4.25%(m/v) glucose solution. 8. The following questions involve calculations of equivalents or miliequivalents. a) How many equivalents of sodium ion and sulfate ion are present in a...
CRITICAL THINKING QUESTIONS 1. A pre-weighed dialysis bag which contained a solution of 10% glucose was...
CRITICAL THINKING QUESTIONS 1. A pre-weighed dialysis bag which contained a solution of 10% glucose was placed in a beaker containing a solution of 20% glucose. After one hour, the bag was weighed again a. Calculate the % mass change of this dialysis bag from the following information: • Mass of bag before experiment: 15.39 • Mass of bag after experiment: 12.79 b. Determine the tonicity of the beaker when it is compared to the dialysis bag: 2. facell had...
1a. A batch of cells are found to contain 300 mM gluco cell. The cell membrane...
1a. A batch of cells are found to contain 300 mM gluco cell. The cell membrane has pores which are permeable to glucose Cound to contain 300 mM alucose and 150 mM Cach inside the ions. These cells are then placed in a NaCl solution which has an osmolarity of milliosmoles. What happens to the cells after the solution comes to equilibrium? (2 Points) a. The cells remain the same size as they were originally b. The cells swell C....
please help with this question. I am taking microbiology class and I really need help. 1....
please help with this question. I am taking
microbiology class and I really need help.
1. 10pts. Below is a diagram of a cell with two differently sized molecules at much higher concentration inside the cell than outside of the cell. For each of the scenarios listed, describe what would move and where: a) the membrane is permeable to both molecules, b) the membrane is only permeable to the smaller molecule, c) the membrane is impermeable to both molecules. Now...
2-27. What volume of a 6.0%(m/V) solution of ethanol contains 30 g of ethanol A) 6,0 mL B) 10.ml C) 50 mL D) 5.0 mL E) 30.ml 7 2-28. How many 1:10 serial dilutions are needed to prepare a pH 4 solution from 0.1 M hydrochloric acid A) 1 B) 2 C) 3 D) 4 E) 5 2-29. How many grams of glucose should be weighed out to make 1 liter of a rehydration solution that contains 75 mmol of...
Question 1 (0.25 points) What is the molar concentration of sucrose (C12H22011) in a solution made by dissolving 33.95g of sucrose in enough water to make 500.0mL of solution? Use the Periodic Table in Appendix A of your textbook and round to an appropriate number of sig figs. Your Answer: Answer units Question 2 (0.25 points) What is the molar concentration (M) of potassium acetate in a solution made by dissolving 10.83g of potassium acetate in enough water to make...
I need help with filling out the chart in the second picture,
the first photo is the data needed to answer the questions
Figure 4.7 Osmosis demonstration. Athistle tube, covered at the broad end by a differential contains distilled water. b. The solute (starch is unable to pass the through in both directions. There is a net movement of water town and lower water concentration. c. Due to the incomi ally permeable membrane, contains a arch o n through the...
the concentration in %(m/v) of a solution prepared by dissolving 50.0 sucrose in 220 mL of ethanol. hat is the concentration in ppm of a solution that contains 0.234 g of lactic acid dissolved in 350 mL of aqueous solution? h) How many grams of glucose are present in 850 mL of a 4.25%(m/v) glucose solution. 8. The following questions involve calculations of equivalents or miliequivalents. a) How many equivalents of sodium ion and sulfate ion are present in a...
CRITICAL THINKING QUESTIONS 1. A pre-weighed dialysis bag which contained a solution of 10% glucose was placed in a beaker containing a solution of 20% glucose. After one hour, the bag was weighed again a. Calculate the % mass change of this dialysis bag from the following information: • Mass of bag before experiment: 15.39 • Mass of bag after experiment: 12.79 b. Determine the tonicity of the beaker when it is compared to the dialysis bag: 2. facell had...
1a. A batch of cells are found to contain 300 mM gluco cell. The cell membrane has pores which are permeable to glucose Cound to contain 300 mM alucose and 150 mM Cach inside the ions. These cells are then placed in a NaCl solution which has an osmolarity of milliosmoles. What happens to the cells after the solution comes to equilibrium? (2 Points) a. The cells remain the same size as they were originally b. The cells swell C....
please help with this question. I am taking
microbiology class and I really need help.
1. 10pts. Below is a diagram of a cell with two differently sized molecules at much higher concentration inside the cell than outside of the cell. For each of the scenarios listed, describe what would move and where: a) the membrane is permeable to both molecules, b) the membrane is only permeable to the smaller molecule, c) the membrane is impermeable to both molecules. Now...
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