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san4es73 [151]
3 years ago
15

For diffusion to occur, which condition must be met?

Chemistry
2 answers:
garri49 [273]3 years ago
7 0

A.   The gas  will diffuse from the more concentrated are to the least concentrated.

Masteriza [31]3 years ago
5 0

Answer:

A) A concentration gradient must exist.

Explanation:

For diffusion to occur there must be a concentration gradient. Diffusion occurs when particles move from a region of high concentration to a region of lower concentration. Diffusion occurs until there is equal concentration on both sides. Diffusion stops when concentration equilibrium is reached.

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what is the mole fraction of ethanol c2h5oh in an aqueous solution that is 46 perccent ethanol by mass?
kari74 [83]

The mole fraction of ethanol c2h5oh in an aqueous solution that is 46 percent ethanol by mass is 0.25

Mole fraction is the mole of one of the component of the solution divided by the total moles of the solution

Calculating the mole fraction of ethanol,we get

Percentage by weight of ethyl alcohol is 46% which implies in 100 g of this solution is 46 g while the mass of the water will be 54% of 100 g = 54g.

Finding the moles of water and the ethyl alcohol {molar mass of water(H₂O) = 18 and molar mass of ethyl alcohol(C₂H₆O = 46}

Moles = mass/molar mass

moles of ethanol = 46/46 = 1

moles of water = 54/18 = 3

ntotal=1+3=4

Mole fraction of ethanol is:

  Mole of ethanol            =   1/4

   Total mole of solution

Hence, the mole fraction is 1/4 or 0.25

To learn more about mole fraction visit:

brainly.com/question/8076655

#SPJ4

7 0
2 years ago
How many moles of solute
nydimaria [60]

Answer:

3.4483 ok I googled it

Explanation:

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6 0
4 years ago
7. A figure skater skating across ice, who grabs another skater and brings him along the ice with her, is an example of what typ
xenn [34]

Answer:

The type of collision is A. Inelastic collision.

Explanation:

The macroscopic collisions are generally inelastic and do not conserve the kinetic energy, although of course the total energy is conserved. The inelastic collision is one in which the objects that collide remain together after the collision.

So, a figure skater skating across ice, who grabs another skater and brings him along the ice with her is a clear example of inelastic collision.

6 0
4 years ago
Read 2 more answers
What do you understand by<br> eclipse?<br>​
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Explanation:

i understand the eclipse is often used to describe solar eclipse and when the moons shadow crosses Earth surface or it's when the moon moves into Earths shadow

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3 years ago
Besides energy form the sun, what force helps move water molecules through the water cycle
Angelina_Jolie [31]

Answer:

Aside from the sun, the water cycle is driven by the transpiration in plants and respiration in humans. Humans and animals both release water vapor in the atmosphere.

Explanation:

I hope this helps you! :D

6 0
3 years ago
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