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arlik [135]
3 years ago
7

The larger the hole in the ozone layer gets,

Chemistry
1 answer:
seraphim [82]3 years ago
4 0
 The more UV rays reach the earth

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How many hydrogen atoms are contained in 167 grams of propane?
Dmitry_Shevchenko [17]

Propane is C3H8

So Molar mass propane = 3*12 + 8*1 = 44 <span>
No. of moles of propane = 167/44 = 3.795 moles</span>

From the stoichiometry: <span>
No. of moles of hydrogen = 3.795 moles * (8 moles hydrogen / 1 mole propane) = 30.36 moles 

Using Avogadros number, 1 mole of any substance contains 6.022 x 10^23 atoms, therefore: 
<span>No. of hydrogen atoms = 30.36 * 6.022 x 10^23 = 1.828 x 10^25 atoms</span></span>
4 0
3 years ago
He free energy of a gas depends on __________. (select all correct answers) partial pressure of the gas van der waals constant f
Black_prince [1.1K]
Viscosity of the gas
4 0
3 years ago
Describe 2 ways of salting out proteins ​
liubo4ka [24]

The phenomenon known as "salting-out" occurs at very high ionic strengths, when protein solubility declines as ionic strength rises. As a result, salting out may be used to segregate proteins according to how soluble they are in salt solutions.

Because large levels of sodium chloride disturb the bonds and structure of the active site, the rate of enzyme activity will gradually decrease as the concentration of sodium chloride rises. As a result, some of the active sites get denaturized and the starch loses its ability to attach to them. As more enzymes get denatured and eventually cease to function, enzyme activity will steadily wane.

8 0
2 years ago
A gas occupies a volume of 30.0L, a temperature of 25°C and a pressure of 0.600atm. What will be the volume of the gas at STP?​
Shalnov [3]

Answer:

=16.49 L

Explanation:

Using the equation

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P1V1/T1= P2V2/T2

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What energy is stored
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Explanation:

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