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3 years ago

What does pressure measure

Chemistry

2 answers:

mel-nik [20]3 years ago

7 0

Answer:

Pressure measurement is the analysis of an applied force by a fluid (liquid or gas) on a surface. Pressure is typically measured in units of force per unit of surface area.

<em>hope this helps! mark as brainlist! :D</em>

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matrenka [14]3 years ago

6 0

Answer:

<h3>THIS IS YOUR ANSWER I HOPE IT IS HELPFUL PLZ MARKS ME BRANILY </h3>

You might be interested in

Find the density of a piece of glass with a mass of 500g and a volume of 200cm3

kykrilka [37]

Density = mass/volume
D = 500 g /200 cm^3
D = 2.5 g/cm^3

hope this helps!

3 0

4 years ago

You wish to generate 1.00 L of a 0.0750 M NaCl solution by diluting a more concentrated solution. What volume (in mL) of a 0.275

miss Akunina [59]

Taking into account the definition of dilution, you need to use a volume of 272.72 mL of a 0.275 M NaCl solution.

<h3>Dilution</h3>

When it is desired to prepare a less concentrated solution from a more concentrated one, it is called dilution.

Dilution is the process of reducing the concentration of solute in solution, which is accomplished by simply adding more solvent to the solution at the same amount of solute.

In a dilution the amount of solute does not change, but as more solvent is added, the concentration of the solute decreases, as the volume (and weight) of the solution increases.

A dilution is mathematically expressed as:

Ci×Vi = Cf×Vf

where

Ci: initial concentration
Vi: initial volume
Cf: final concentration
Vf: final volume

<h3>Initial volume</h3>

In this case, you know:

Ci= 0.275 M
Vi= ?
Cf= 0.0750 M
Vf= 1 L

Replacing in the definition of dilution:

0.275 M× Vi= 0.0750 M× 1 L

Solving:

Vi=(0.0750 M× 1 L)÷ 0.275 M

In summary, you need to use a volume of 272.72 mL of a 0.275 M NaCl solution.

Learn more about dilution:

brainly.com/question/6692004

brainly.com/question/16343005

brainly.com/question/24709069

#SPJ1

8 0

2 years ago

If the temperature changes in a chemical reaction, what has occurred?

bazaltina [42]

Answer:

Energy was transferred

Explanation:

If the temperature changed, energy must have been added or lost, but not created. Energy can't be created or destroyed.

3 0

3 years ago

The equilibrium system N2O4(g) 2NO2(g) was established in a 1.00-liter vessel. Upon analysis, the following information was foun

julsineya [31]

For the reaction, the equilibrium constant equation will be:

Kc = [NO₂]² / [N₂O₄]
Kc = (0.5)² / 0.025
Kc = 10

The answer is C.

3 0

3 years ago

Read 2 more answers

When fluorine gas combines with water vapor, the following reactions occurs.

jonny [76]

Hello!

The Chemical reaction is the following:

2F₂(g) + 2 H₂O(g) → O₂(g) + 4HF(g)

If we assume that all the gases are ideal gases, we can describe the coefficients of this reaction as Volume rather than moles, so we can apply the following equations:

$2 L F_2* \frac{2 L H_2O}{2 L F_2}=2 L H_2O \\ \\ 2 L F_2* \frac{1 mol O_2}{2 L F_2}=1 mol O_2 \\ \\ 2 L F_2* \frac{4 mol HF}{2 mol F_2}= 4 mol HF$

So, 2 L of Water Vapor reacts with the fluorine; and 1 L of Oxygen and 4 L of Hydrogen Fluoride are produced.

Have a nice day!

6 0

3 years ago