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
kvasek [131]
4 years ago
10

A 0.9% solution of NaCl is considered isotonic to mammalian cells. what molar concentration is this?

Engineering
1 answer:
natka813 [3]4 years ago
3 0

Answer:

58.44 g/mol The Molarity of this concentration is 0.154 molar

Explanation:

the molar mass of NaCl is 58.44 g/mol,

0.9 % is the same thing as 0.9g of NaCl , so this means that 100 ml's of physiological saline contains 0.9 g of NaCl.  One liter of physiological saline must contain 9 g of NaCl.  We can determine the molarity of a physiological saline solution by dividing 9 g by 58 g... since we have 9 g of NaCl in a liter of physiological saline, but we have 58 grams of NaCl in a mole of NaCl.  When we divide 9 g by 58 g, we find that physiological saline contains 0.154 moles of NaCl per liter.  That means that physiological saline (0.9% NaCl) has a molarity of 0.154 molar.  We can either express this as 0.154 M or 154 millimolar (154 mM).

You might be interested in
Is my paper's main idea, or thesis, clearly stated early on (within the first paragraph, ideally)?
Burka [1]
I dont know is your papers main idea stated clearly?
5 0
3 years ago
How can I draw this image in 2D form
Ket [755]

Answer:

no it is not 2D

Explanation:

it is 3D

ok so follow these steps

- make hole

-make square

-make triangle

ok now your figure is ready

5 0
3 years ago
For a fluid flowing through a pipe assuming that pressure drop per unit length of pipe (P/L) depends on the diameter of the pipe
Lyrx [107]

Answer:

Explanation:

La vaca

El pato

7 0
4 years ago
What is the real name of the town that Bud & Bugs stayed in while they were waiting for the train?
Leona [35]

Answer: Hooverville

Explanation:

Bud, not Buddy is a book about a ten years old boy who ran away from home where he stayed with his foster parents. He was treated unfairly and beaten.

He left home to seek a better living and hope that he will find his father as well. He met another orphan named Bugs and they decided to go to Hooverville so that they can get a train going to California.

6 0
3 years ago
Which factor is typically not a requisite feature of setting a career goal?
Vaselesa [24]

Answer:

Explanation: Analysing the goal of the family is not a requisite feature of setting a career goal. It is an individual person's ability and topic of interest so the family goal cannot be taken into consideration. Brainliest

Explanation:

5 0
3 years ago
Other questions:
  • A liquid-liquid extraction process consists of two units, a mixer and a separator. One inlet stream to the mixer consists of two
    7·1 answer
  • A large part in a turbine-generator unit operates near room temperature and is made of ASTM A470-8 steel ( ). A surface crack ha
    11·1 answer
  • An airplane flies horizontally at 80 m/s. Its propeller delivers 1300 N of thrust (forward force) to overcome aerodynamic drag (
    15·1 answer
  • Water at 20◦C is pumped through 1000 ft of 0.425 ft diameter pipe at a volumetric flowrate of 1 ft3/s through a cast iron pipe t
    14·1 answer
  • Give six reasons why farmers cultivate on small land​
    5·1 answer
  • In c the square root of a number N can be approximated by repeated calculation using the formula NG = 0.5(LG + N/LG) where NG st
    14·1 answer
  • A slab-milling operation is performed on a 0.7 m long, 30 mm-wide cast-iron block with a feed of 0.25 mm/tooth and depth of cut
    14·1 answer
  • A cross beam in a highway bridge experiences a stress of 14 ksi due to the dead weight of the bridge structure. When a fully loa
    14·1 answer
  • Tech A says you can find the typical angle of a V-block engine by dividing the number of cylinders by 720
    11·1 answer
  • Identify the prefixes used in the International System of
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!