A physical change is a change that can be fixed like cutting wood or tearing paper, or breaking a bone, on the flip side chemical changes cannot be undone, this is like rust on a nail

6 0

3 years ago

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The Ottoman Empire was dissolved following World War I. Which modern nation came out of that empire?

kati45 [8]

The answer would be Turkey

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3 years ago

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Osmosis is the process responsible for carrying nutrients and water from groundwater supplies to the upper parts of trees. The o

liberstina [14]

Answer: Molar concentration of the tree sap have to be 0.783 M

Explanation:

To calculate the concentration of solute, we use the equation for osmotic pressure, which is:

$\pi=iCRT$

where,

$\pi$ = osmotic pressure of the solution = 19.6 atm

i = Van't hoff factor = 1 (for non-electrolytes)

R = Gas constant = $0.0821\text{ L.atm }mol^{-1}K^{-1}$

T = temperature of the solution = $32^oC=[273+32]=305K$

Putting values in above equation, we get:

$19.6atm=1\times C\times 0.0821\text{ L.atm }mol^{-1}K^{-1}\times 305K$

$C=0.783M$

Thus the molar concentration of the tree sap have to be 0.783 M to achieve this pressure on a day when the temperature is 32°C

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3 years ago

I need to know how to calculate the volume of a mole of gas at pressure 4.5 atm and a temperature of 275K. I am interested in un

sergeinik [125]

Answer:

Explanation:

9299898988898989899

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3 years ago