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3 years ago

What causes London dispersion forces?

1 answer:

5 0

The London Dispersion force s a temporary attractive force that results when the electrons in two adjacent atoms occupy positions that make the atoms form temporary dipoles. And because of this, the London Dispersion force is considered to be the weakest intermolecular force.

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Dinitrogentetraoxide partially decomposes into nitrogen dioxide. A 1.00-L flask is charged with 0.0400 mol of N2O4. At equilibri

artcher [175]

Answer:

Keq=0.866

Explanation:

Hello,

In this case, the undergone chemical reaction is:

$N_2O_42NO_2$

In such a way, since 0.0055 mol of N₂O₄ remains in the flask, one infers that the reacted amount ( $x$ ) was:

$x=0.04mol-0.0055mol=0.0345mol$

In addition, the produced amount of NO₂ is:

$2*0.0345mol=0.069mol$

Finally, considering the flask's volume, the equilibrium constant is then computed as follows:

$Keq=\frac{(2*0.0345M)^2}{0.0055M}=0.866$

Best regards.

6 0

3 years ago

Composition of matter which depends on temperature.

Arte-miy333 [17]

Phase of matter

Explanation:

The phase of matter strictly is a function of its temperature. Matter exists in different phases at different temperatures.

Matter is anything that has weight and occupies space.
There are three states of matter:

Solid
Liquid
Gas

These phases of matter depends on temperature.

For example;

Water exists as gases above boiling point
Water is also solid at freezing point.
Between the freezing and boiling point, water is a liquid.

Learn more:

Chemistry brainly.com/question/8839455

#learnwithBrainly

7 0

3 years ago

An experiment requires 42.5 g of sulfuric acid, which is easier to measure by volume than by mass what voliume should be measure

kodGreya [7K]

Using proportions, if x is the unknown volume we have:
1.84 / 1 = 42.5 / x

Multiply both sides above by x:
1.84*x / 1 = 42.5
1.84*x = 42.5
Divide both sides by 1.84:
x = 42.5 / 1.84

X = 23.10 mL

5 0

3 years ago

Read 2 more answers

An intravenous infusion is to contain 15 mEq of potassium ion and 20 mEq of sodium ion in 500 mL of 5% dextrose injection. Using

Studentka2010 [4]

Answer:

To supply the required ions it is necessary to inject 5,6mL of 6g/30mL solution and 131,1 mL of 0,9% solution.

Explanation:

1mEq of sodium are 59mg of NaCl and 1mEq of potassium are 75mg KCl

in intravenous infusion 15 mEq of K are:

15x75mg KCl = 1,125g of KCl

And 20 mEq of Na are:

20x59mg NaCl = 1,18g of NaCl

To supply the potassium ion it is necessary to inject:

1,125g of KCl× $\frac{30mL}{6g}$ = 5,6mL of 6g/30mL solution

And, to supply the sodium ion it is necessary to inject:

1,18g of NaCl× $\frac{100mL}{0,9g}$ = 131,1 mL of 0,9% solution

I hope it helps!

6 0

4 years ago

As the mass of an object increases, what happens to the gravitational force created by that object?

alexandr1967 [171]

Answer:

the gravitational force is proportional to the mass of both interacting objects, bigger objects will attract each other with a greater gravitational force. So the mass of either object increases, the force of gravitational attraction between them also increases.

4 0

3 years ago

Read 2 more answers