1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Wewaii [24]
4 years ago
10

What is the minimum pressure in kPa that must be applied at 25 °C to obtain pure water by reverse osmosis from water that is 0.1

63 M in sodium chloride and 0.019 M in magnesium sulfate? Assume complete dissociation for electrolytes.
Chemistry
1 answer:
Yuri [45]4 years ago
6 0

Answer:

The minimum pressure should be 901.79 kPa

Explanation:

<u>Step 1: </u>Data given

Temperature = 25°C

Molarity of sodium chloride = 0.163 M

Molarity of magnesium sulfate = 0.019 M

<u>Step 2:</u> Calculate osmotic pressure

The formula for the osmotic pressure =

Π=MRT.

⇒ with M = the total molarity of all of the particles in the solution.

 ⇒ R = gas constant = 0.08206 L*atm/K*mol

⇒ T = the temperature = 25 °C = 298 K

NaCl→ Na+ + Cl-

MgSO4 → Mg^2+ + SO4^2-

M = 2(0.163) + 2(0.019 M)

M = 0.364 M

Π = (0.364 M)(0.08206 atm-L/mol-K)(25 + 273 K)

Π = 8.90 atm

(8.90 atm)(101.325 kPa/atm) = 901.79 kPa

The minimum pressure should be 901.79 kPa

You might be interested in
Can somebody plz answer these 3 questions correct
Travka [436]

Answer: Basilosaurus is a prehistoric whale which lived approximately 40 million to 34 million years ago during the Late Eocene Period.

Explanation:

5 0
3 years ago
Read 2 more answers
In this simulation what do you think the bread and cheese separately represent, the atom or the molecule?
Svetllana [295]

Answer:

the atom

Explanation:

The bread and cheese separately represent the atom because both bread and cheese are different from one another and we cannot assume it as a molecule because molecules formed when the group of atoms combine together by making bonds with each other and we know that bread and cheese did not make bonds with each other, they only attached, so we called them atoms not molecule.

8 0
3 years ago
PLEAS HURRY IM TIMED If something moves around and takes the shape of the container it is in, it is most likely a
den301095 [7]
Gas and liquid both take the shape of their container. The difference is gas molecules equally fills the space. Is there any more information?
7 0
3 years ago
Read 2 more answers
Arrange the following elements in order of increasing ionization energy
Gnoma [55]

Ionization Trend: First ionization energy will increase left to right across a period and increase bottom to top of a family (column).

A) Sr, Be, Mg are all in column 2 of the periodic table. Based on the first ionization rule above, from increasing to decreasing energy, the order is: Be, Mg, Sr

B) Bi, Cs, Ba are all in the same row of the periodic table. Based on the first ionization rule above, from increasing to decreasing energy, the order is: Bi, Ba, Cs

C) Same rule as above. Order is: Na, Al, S

8 0
3 years ago
Na CN + HCl -&gt;?? <br><br>Thanks for your time ​
Tom [10]

Sodium chloride and prussic acid are formed

NaCN+HCl→NaCl+HCN

4 0
3 years ago
Other questions:
  • Which is colder dry ice or dioxide gas
    15·2 answers
  • What is the hybridised structure of B2H6?
    9·2 answers
  • Which of the following aqueous solutions are good buffer systems? . 0.29 M perchloric acid + 0.15 M potassium perchlorate 0.16 M
    5·1 answer
  • What is the answer to this because I'm clueless?
    13·1 answer
  • What is the volume, in liters, of 0.500 mol of c3 h8 gas at stp?
    15·1 answer
  • How many grams of Na2SO4 are required to make 0.30 L of 0.500 M Na2SO4?
    14·1 answer
  • Please help! Due today!
    9·1 answer
  • Joshua wants to create something to put between a hot pot and a table, so he doesn't burn the table. He
    9·1 answer
  • State two substances that can be used as a filter in water treatment.​
    9·1 answer
  • What is the ratio of 32oz of fuel to oil for 25 to 1.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!