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1 year ago

would you expect molecules with large molecular weights to have potential inhalation hazards? why or why not?

Chemistry

1 answer:

nordsb [41]1 year ago

5 0

Molecules with large molecular weights will not have potential inhalation hazards.

It is because molecules that have large molecular masses will also have a high boiling point. Now boiling point and vapor pressure are inversely related. So the vapor pressure of such molecules will be very low. Hence, there will no vapors available for inhalation.

A high molecular weight will increase the effective resistance of the fabric. The better diploma of entanglement manner that will rupture, the more polymer bonds need to be broken, because of this, the polymer can take in more electricity earlier than failing. Excessive molecular weight will increase the chemical resistance - to some extent.

Hence, these will not cause inhalation hazards.

Learn more about inhalation hazards here:-brainly.com/question/1788721

#SPJ4

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A chemist fills a reaction vessel with 9.20 atm nitrogen monoxide (NO) gas, 9.15 atm chlorine (CI) gas, and 7.70 atm nitrosyl ch

ivanzaharov [21]

Answer:

The reactions free energy $\Delta G = -49.36 kJ$

Explanation:

From the question we are told that

The pressure of (NO) is $P_{NO} = 9.20 \ atm$

The pressure of (Cl) gas is $P_{Cl} = 9.15 \ atm$

The pressure of nitrosly chloride (NOCl) is $P_{(NOCl)} = 7.70 \ atm$

The reaction is

$2NO_{(g)} + Cl_2 (g)$ ⇆ $2 NOCl_{(g)}$

From the reaction we can mathematically evaluate the $\Delta G^o$ (Standard state free energy ) as

$\Delta G^o = 2 \Delta G^o _{NOCl} - \Delta G^o _{Cl_2} - 2 \Delta G^o _{NO}$

The Standard state free energy for NO is constant with a value

$\Delta G^o _{NO} = 86.55 kJ/mol$

The Standard state free energy for $Cl_2$ is constant with a value

$\Delta G^o _{Cl_2} = 0kJ/mol$

The Standard state free energy for $NOCl$ is constant with a value

$\Delta G^o _{NOCl} =66.1kJ/mol$

Now substituting this into the equation

$\Delta G^o = 2 * 66.1 - 0 - 2 * 87.6$

$= -43 kJ/mol$

The pressure constant is evaluated as

$Q = \frac{Pressure \ of \ product }{ Pressure \ of \ reactant }$

Substituting values

$Q = \frac{(7.7)^2 }{(9.2)^2 (9.15) } = \frac{59.29}{774.456}$

$= 0.0765$

The free energy for this reaction is evaluated as

$\Delta G = \Delta G^o + RT ln Q$

Where R is gas constant with a value of $R = 8.314 J / K \cdot mol$

T is temperature in K with a given value of $T = 25+273 = 298 K$

Substituting value

$\Delta G = -43 *10^{3} + 8.314 *298 * ln [0.0765]$

$= -43-6.36$

$\Delta G = -49.36 kJ$

4 0

3 years ago

What volume will 2.00 moles of nitrogen occupy at 720 torr and 20C?

bija089 [108]

Answer:

50.62L

Explanation:

1torr= 0.00132atm

P=720torr = 0.95atm

V= 20°C= 20+273= 293K

PV=nRT

R=0.08206L-atm/mol-K

0.95×V= 2×0.08206×293

V= 2×0.08206×293/ 0.95

V= 50.62L

3 0

4 years ago

According to scientific evidence, earth’s earliest atmosphere lacked oxygen. Over time, oxygen was added to the atmosphere.

Marianna [84]

B.
The cynobacteria were already there without the oxygen, so that rules out A, and a lot of prokaryotes were anaerobic, so that rules out C. Finally, Photosynthesis does not require oxygen. Instead, Oxygen is a waste product of it. Therefore, it cannot be D. So, we are only left with B
Hoped this helped :D

4 0

3 years ago

A sample of matter is at extreme temperatures with particles moving so quickly that their collisions release electrons from the

Angelina_Jolie [31]

<h2>Answer:</h2>

The phase of matter will be known as the forth phase of matter, plasma.

<h3>Explanation:</h3>

There are 4 phases of matters:

Gas: The freely moving molecules, having no definite volume and shape.
Liquid: The loosely bonded molecules, having a definite volume but not shape.
Solid: Highly packed molecules with definite volume and shape.
Plasma: The more like gases phase, containing freely moving electrons and positive ions.

Hence according to the question description and given above matter phases, the phase of that sample will be plasma.

4 0

3 years ago

Will mark Brainliest!!! PLEASE HELP

GalinKa [24]

1= D
2= B
3= E
4= F
5= A

8 0

3 years ago