Question

In: Biology

A membrane separates two solutions. Solution C is 300 mL of 0.2 M NaCl, and Solution...

A membrane separates two solutions. Solution C is 300 mL of 0.2 M NaCl, and Solution D is 500 mL of 0.6 M NaCl. The membrane is permeable to water, sodium ions, and chloride ions. After 24 hours, what will be the chloride ion concentration in Solution C? Show your calculations.

Expert Solution

Solution C is 300 mL of 0.2 M NaCl

Molecular weight of NaCl is 58.44 g/mol.

1 M NaCl has 58.44 g/1000 ml

0.2 M NaCl has 11.688 g/1000 ml (58.44 x 0.2)

0.2 M NaCl has 3.5064 g/300 ml (11.688 x 300/1000 = 3.5064)

So, solution C has 3.5064 g of NaCl.

Solution D is 500 mL of 0.6 M NaCl.

1 M NaCl has 58.44 g/1000 ml

0.6 M NaCl has 35.064 g/1000 ml (58.44 x 0.6)

0.2 M NaCl has 17.532 g/500 ml (35.064 x 500/1000 = 17.532).

So, solution D has 17.532 g of NaCl.

After 24 hours, both solution C and D will have equal volume of water and equal concentration of NaCl, as the membrane is permeable to water, Na+, and Cl- ions.

Total volume is 800 ml (300+500). So, each solution would have 400 ml.

Total quantity of NaCl is 21.0384 g (3.5064 + 17.532) in 800 ml. This means 0.45 M concentration.

800 ml has 21.0384 g NaCl (i.e. 26.298 g/L).

If 1 M NaCl has 58.44 g/1000 ml, then the concentration of the solution at 26.298 g/L is 0.45 M (26.298/58.44 = 0.45).

gladiator answered 1 year ago

You add 300 mL of Tris-HCl at 0.1 M to a 0.2 L solution of 0.9%...

You add 300 mL of Tris-HCl at 0.1 M to a 0.2 L solution of 0.9% (w/v)NaCl, and to which you add 500 mg of NaCl (powder). What is the concentration of Tris-HCl in mM and in g/L? Tris-HCl : MW 121.14 NaCl : MW 58.44

at 25 C, a solution is prepared by adding 50 ml of 0.2 M NaOH to...

at 25 C, a solution is prepared by adding 50 ml of 0.2 M NaOH to 75 ml of 0.1 M NaOH. What is the total concentratoin of hydorxide ion in the solution? Assume volumes are additive.

Exactly 47.0 mL of 0.2 M HNO2 are titrated with a 0.2 M NaOH solution. What...

Exactly 47.0 mL of 0.2 M HNO2 are titrated with a 0.2 M NaOH solution. What is the pH at the equivalence point ?

(a) 3.25 M NaCl solution (density of solution = 1.08 g/mL)

Calculate the molality of each of the following aqueous solutions. (a) 3.25 M NaCl solution (density of solution = 1.08 g/mL) m (b) 51.4 percent by mass KBr solution m

1. Which of the following best describes a condition where a membrane separates two solutions that are NOT in equilibrium?

1. Which of the following best describes a condition where a membrane separates two solutions that are NOT in equilibrium? a. a rainbow b. equilibrium c. a homogeneous solution d. neighboring solutions that have unequal concentrations of molecules 2. In this lab, (diffusion and osmosis) we will use dialysis tubing to.... a. simulate biological membranes b. separate blood from urine c. turn starch blue d. turn starch brown

4. 62.4 mL of 0.39 M NaCl solution was added to 26.8 mL of 058 M...

4. 62.4 mL of 0.39 M NaCl solution was added to 26.8 mL of 058 M Pb(NO3)2 solution. a. Write the full balanced reaction, the molecular ionic equation and the net ionic equation. b. What is the precipitate? c. How many grams of the precipitate can be made

100 mL of 0.1 M NaOH solution was poured into 20 mL of 0.2 M H2SO4...

100 mL of 0.1 M NaOH solution was poured into 20 mL of 0.2 M H2SO4 solution and mixed well. What was the final pH of the mixture?

1. How much Sodium chloride (NaCl), in grams, would you need to prepare 100 mL of a 0.2 M NaCl solution, giving the molecular weight for NaCl is 58.4 g/mole?

1. How much Sodium chloride (NaCl), in grams, would you need to prepare 100 mL of a 0.2 M NaCl solution, giving the molecular weight for NaCl is 58.4 g/mole? 2. How much glucose, in grams, would you need to prepare 25 mL of a 24% glucose solution? 3. How much stock solution would you need to make 50 mL of a 86 mM Potassium chloride (KCl) solution, given the stock solution is 1 M?

A solution prepared by mixing 22.4 mL of 0.380 M NaCl and 22.4 mL of 0.380...

A solution prepared by mixing 22.4 mL of 0.380 M NaCl and 22.4 mL of 0.380 M KI was titrated with 0.190 M AgNO3 in a cell containing a silver indicator electrode and a saturated calomel reference electrode. (a) What is [Ag ] when 21.2 mL of 0.190 M AgNO3 have been added? Express your answer as x, where [Ag ] is a quotient having the form Ksp,AgI/x. (b) What is [Ag ] when 67.0 mL of 0.190 M AgNO3...

You have two aqueous solutions: solution A is 20 mL of 1 M MgSo4. Solution B...

You have two aqueous solutions: solution A is 20 mL of 1 M MgSo4. Solution B a 25 mL of 1.5 M Na2SO4. You take 5 mL of solution A and mix it with 10 mL of solution B. a. What are the total moles of ions in solution A? b. What are the total moles of ions in solution B? c. What are the total moles of ions in solution C? d. What are the total moles of sulfur...