3 years ago

Which of the units is NOT a measure of pressure ?

Chemistry

1 answer:

DedPeter [7]3 years ago

8 0

Answer:

Dynes

Explanation:

Dynes is not a unit of pressure. Dynes is CGS unit of force.

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Sulfur hexafluoride, SF6, is a colorless, odorless, very unreactive gas. Calculate the pressure (in atm) exerted by 2.02 moles o

miss Akunina [59]

Answer:

9.15 atm

Explanation:

Ideal gas equation of state PV=nRT

P in hPa, V in L, n in mol, R is a constant which is 83.1 hpa*L/mol*k, T in kelvin.

Plug in all the number, and we will get:

P*6.21=2.02*83.1*343

P =9271.6(in hpa)=9.15 atm

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2 years ago

How does ground water become polluted

solniwko [45]

Ground Water can become polluted from when fossils and things make their way to the bottom of the ground and polluted the ground water

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2 years ago

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What is the classification of a solution of naoh with a ph of 8.3?

Maksim231197 [3]

Answer:

<u>Alkaline or basic solution </u>(alkaline and basic means the same)

Explanation:

According to the <em>pH</em>, solutions may be classified as neutral, acidic, or alkaline (basic).

This table shows such classification:

pH classification

7 neutral

> 7 alkaline or basic

< 7 acidic

Thus, since the pH of the solution is 8.3, which is greater than 7, the solution is classified as basic (alkaline).

Additionally, you must learn that pH is a logarithmic scale for the concentration of hydronium ions in the solution.

pH = - log [H₃O⁺]

You can calculate the concentration of hydronium ions using antilogarithm properties:

$pH=-log[H_3O^+]\\ \\ {[H_3O^+]}=10^{-pH}\\ \\ {[H_3O^+]}=10^{-8.3}=0.00000000501$

NaOH solutions are alkaline solutions, bases, according to Arrhenius model, because they contain OH⁻ ions and release them when ionize in water.

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2 years ago

The picture below shows a specific nuclear reaction occurring. What best describes the unlabeled particle shown at the bottom of

neonofarm [45]

Maybe it A but im not sure

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2 years ago

HELPPP PLS

photoshop1234 [79]

I think it could be C maybeee though

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2 years ago