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3 years ago

How is osmosis different from diffusion?

2 answers:

7 0

<span>Osmosis is pretty much the movement of water and it always moving in the membrane. Diffusion doesn't need a membrane to produce molecules. And, diffusion is the movement of the molecules</span>

RUDIKE [14]3 years ago

3 0

Osmosis is the movement of water and is always the movement in the membrane. Diffusion does not need a membrane to make molecules and Diffusion is the movement of molecules.
hoped this helped, good luck

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2 years ago

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If 1,079.75 Joules of heat are added to 77.75 grams of water, by how many degrees Celsius would the water increase? Assume water

djyliett [7]

Answer:

If 1,079.75 Joules of heat are added to 77.75 grams of water, by 3.32 degrees Celsius the temperature of water will increase

$\Delta T=3.32 C^{0}$

Explanation:

$q = mC\Delta T$

Here , q = heat added / removed from the substance

m = mass of the substance taken

$\Delta T$ = Change in temperature

C = specific heat capacity of the substance

In liquid state the value of C for water is :

$4.18 J/gC^{0}$

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q = 1079.75 J

m = 77.75 gram

Insert the value of C, m , q in the given equation

$q = mC\Delta T$

on transposing ,

$\Delta T=\frac{q}{mC}$

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3 years ago

Which of the following is not a characteristic of metals? A. good conductors B. ductile and malleable C. incompressible D. cryst

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A. good conductors is not a characteristic of metals out of all the other followings.

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3 years ago

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Considering the volumes and the concentrations used in mixture 1, what percentage of the moles of H2O2 present have been consume

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Answer:

1 mol of H2O2 consumes 1 mol of S2O32, then 0.0005 mol of I- reacts with 0.00025 moles of H2O2

Thus, initial moles of H2O2 present in the mix is equal to 0.0102 moles.

Amount of moles of H2O2 that reacts with I- is equal to 0.00025 moles.

The amount of I ions that is oxidized by H2O2 and the iodine, I2 that is produced, is consumed by the S2O32- ions and are transformed into I ions. The amount of I ions that are consumed by H2O2 is equal to the amount of ion that is produced by S2O32-.

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H2O2 = 1.02 * 0.01 = 0.0102 moles

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I2 + S2O32 = 2I- + S4O62-

The same way:

2I- + 2H+ + H2O2 = I2 + 2H2O

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