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alexdok [17]
3 years ago
13

What is the pressure in a gas container that is connected to an closed-end U-tube manometer if the pressure of the atmosphere is

742 torr and the level of mercury in the arm connected to the container is 8.60 cm higher than the level of mercury open to the atmosphere?A) 656 mm HgB) 8.60 mm HgC) 751 mm HgD) 860 mm Hg
Chemistry
1 answer:
Kruka [31]3 years ago
5 0

Answer: A) 656 mm Hg

Explanation:

Pressure of the gas is defined as the force exerted by the particles on the walls of the container. It is expressed in various terms like 'mmHg', 'atm', 'kiloPascals' etc..

All these units of pressure are inter convertible.

We are given:

Pressure of the atmosphere = 742 torr = 742 mm Hg (1mmHg = 1 torr)

Pressure of mercury = 8.60 cm = 86.0 mm Hg  (1cm = 10 mm)

Thus pressure of the gas container = Pressure of the atmosphere - Pressure of mercury = (742 - 86.0) mm Hg= 656 mm Hg

Thus the pressure in a gas container that is connected to an closed-end U-tube manometer is 656 mm Hg.

 

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The function that is NOT related to a protein is:

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Membrane fluidity is not related to a protein function because membrane fluidity is a function of lipids not proteins.

Transport and all other options are involved in functions of protein.

5 0
1 year ago
How many chlorine atoms are found in 8.3 moles of chlorine?
erik [133]

Answer:

5*10²⁴ chlorine atoms are found in 8.3 moles of chlorine.

Explanation:

Avogadro's Number or Avogadro's Constant is called the number of particles that make up a substance (usually atoms or molecules) and that can be found in the amount of one mole of said substance. Its value is 6.023*10²³ particles per mole. Avogadro's number represents a quantity without an associated physical dimension, so it is considered a pure number that allows describing a physical characteristic without an explicit dimension or unit of expression. Avogadro's number applies to any substance.

Then you can apply the following rule of three: if 1 mole of the compound contains 6.023 * 10²³ atoms, 8.3 moles of the compound how many atoms does it have?

amount of atoms=\frac{8.3 moles*6.023*10^{23}atoms }{1 mole}

amount of atoms≅ 5*10²⁴ atoms

<u><em>5*10²⁴ chlorine atoms are found in 8.3 moles of chlorine.</em></u>

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3 years ago
The aldol condensation involves nucleophilic attack of an enolate to a carbonyl. Use the pop-up menus to identify the total numb
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Aldol condensation involves the reaction of an acid or base with a carbonyl group producing a nucleophile that attacks another carbonyl compound  to yield a β-hydroxyaldehyde or β-hydroxyketone compound.

<h3>What is aldol condensation?</h3>

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The aldol condensation may be acid catalysed or base catlysed. The question is incomplete hence the complete mechanimsms can not be decuced.

Learn more about aldol condensation: brainly.com/question/9415260

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