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Oliga [24]
3 years ago
13

A sample of gas (24.2 g) initially at 4.00 atm was compressed from 8.00 l to 2.00 l at constant temperature. after the compressi

on, the gas pressure was __________ atm
Chemistry
1 answer:
FinnZ [79.3K]3 years ago
5 0
Answer: 16 atm  
Explanation: 
P1V1 = P2V2 
P2 = P1V1/V2 
=4 atm x 8.00 L/2.00L = 16 atm
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Provide two arguments on why you don't notice the land moving beneath you, defend your answer.​
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Sugar can be converted to carbon dioxide and water by burning in air or by metabolic reactions inside living cells. How are thes
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2 years ago
g A solution contains 100mM NaCl, 20mM CaCl2, and 20mM urea. We would say this solution is __________ compared to a 300 mOsM sol
ICE Princess25 [194]

Answer:

A solution contains 100mM NaCl, 20mM CaCl2, and 20mM urea. We would say this solution is hypotonic compared to a 300 mOsM solution and hypotonic compared to a cell with 300 mOsM (non-penetrating solutes) interior.

Explanation:

The osmolarity is calculated from the molar concentration of the active particles in the solution. We have a solution that is composed of NaCl, CaCl₂ and urea.

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CaCl₂ → Ca²⁺ + 2 Cl⁻ (3 particles per compound)

urea: not dissociation (1 particle per compound)

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Osm (non-penetrating solutes) = (100 mM NaCl x 2) + (20 mM CaCl₂ x 3) = 260 mOsm

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Compared to 300 mOsm solution ⇒ 280 mOsm solution is a hypotonic solution

Compared to a cell with 300 mOsm ⇒ 260 mOsm solution is hypotonic

4 0
3 years ago
Is P2I4 or Diphosphorus tetraiodide covalent or ionic?
elena55 [62]

Diphosphorus tetraiodide  is a covalent compound.

It has low melting point as compared to ionic compounds

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5 0
3 years ago
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