How many molecules are in 1 mole of molecules?

Answers

Answer 1
Avogadro's Number and the Mole. The mole is represented by Avogadro's number, which is 6.022×1023 atoms or molecules per mol.
Answer 2

Answer:

6.022x10^23

Explanation:


Related Questions

help !!! pretty please ❤️

Answers

Answer:

See below!

Explanation:

To find the symbol of the element, you have to use the periodic table.  

The mass number is the number of protons and neutrons in the atom.  

The atomic number is the number of protons in the atom.

You can find the number of protons from the periodic table.

You can find the neutrons by subtracting the mass number by the number of protons in the atom.

Unless you have an ion, you will have the same amount of electrons as you do protons.

To write in nuclear notation, you write the chemical symbol with the mass number and atomic number shown in the attachment.  It is preferable to have the mass number and atomic number directly above each other.

Which term refers to the number of moles of solute per liter of solution?

Question 1 options:

mole fraction


saturation


concentration


molarity

Answers

Answer:

molarity

Explanation:

in which group in the periodic table do we not find metal A.Group 1 B.Group 2 C.Group 3 D.Group 5​

Answers

Answer:

Group 5

Explanation:

Using method of elimination:

A. Group 1

Also known as the Alkali metals group. It contains metals such as lithium and sodium. This option is incorrect.

B. Group 2

Also known as the Alkali Earth metals group. It contains metals such as Magnesium and calcium. This option is incorrect.

C. Group 3

It contains metals such as Aluminium and scandium. This option is incorrect.

D. Group 5

This is the correct option. The elements in these group are non metals. Examples include Nitrogen.

A tree is an example of an object that contains chemical energy


True or false

please help

Answers

Answer:

false

Explanation:

This is 10th grade Chemistry

Answers

Answer:

shift to restore equilibrium

Explanation:

Le Châtelier's Principle states that when a stress is applied to a system at equilibrium, the system will respond by shifting in the direction (either towards the products or reactants side) that opposes/ minimizes the effect of the stress.

Note that although the system tries to restore equilibrium, this equilibrium is a new equilibrium.

Equilibrium is the state of a reversible reaction when:

• two opposing reactions occur at the same rate;

• the concentrations of reactants and products are constant

true or false plz help

Answers

Answer:

True

animals can only reproduce sexually

Explanation:

Answer:

It's true, I said true the other time but someone already answered so that's why i couldn't answer right now

Explanation:

Substances, such as litmus paper or red cabbage juice, that turn color based on the pH of the solution are called ___.
solutes
solutions
indicators
solvents

Answers

Answer:

soluteswws

Explanation:

How much heat is needed to warm 250g of water from 22℃ to 98℃?

Answers

Answer:

Thus, the required heat is 79kJ 79 k J .

Explanation:

i think its the right bottem one

Describe a time in the group discussion when someone cited evidence from their research to make a point.

Answers

The role of the presenter in a group discussion to introduce information for the group to discuss.

What do you mean by group discussion?

A discussion involving a number of people who are connected by some shared activity, interest, or quality.

Group discussion is a tool to test your teamwork skills, listening skills, discussion ability, subject knowledge, and communication.

Intrinsic skills like reasoning, speaking and time management come in very handy.

Skills that you can work upon include presentation, summarizing and people speaking.

The purpose of a group discussion is not to win an argument or to amuse your classmates.

The purpose of a discussion is to help each group member explore and discover personal meanings of a text through interaction with other people.

Learn more about group discussion here:

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Answer:

This happened when a nutritional question was presented. When asked a nutritional question, evidence was cited from one of the above sites to back up the answer.

Explanation:

The correct name for P2O5 is
a
b
phosphorus(ll) oxide
phosphorus(five) oxide
diphosphorus oxide
diphosphorus pentoxide
С
d

Answers

ANSWER

p2O5 is diphosphorus pentoxide.

What are the similarities between a phylogenetic trees and cladograms.

Answers

Answer: A phylogenetic tree is an evolutionary tree that shows the evolutionary relationships between different groups of animals, Cladograms give a hypothetical picture of the actual evolutionary history of the organisms

Explanation: Hope this helps you out :)

Glucose is produced through the process of photosynthesis
and is shown below. How many atoms of hydrogen are
present in one molecule of glucose?

6

3

12

24

Answers

As shown in the picture, the chemical formula for glucose is C6H12O6. This means that there are 6 carbons, 12 hydrogens and 6 oxygens in one molecule of glucose.

Your Answer: 12

What kind of mixture is frozen
yogurt with sprinkles, fudge, and
gummy bears? How can you tell

Answers

Answer:

a heterogeneous mixture

Explanation:

I can see all of the different parts of the frozen yogurt, and if I were to pick up a gummy bear, it would come out. Thus, it is not fully/completely mixed with the other components.

It is a heterogenous mixture.

What is the difference between Homogeneous  and Heterogeneous Mixtures ?

A type of mixtures where all the components are mixed uniformly called as homogeneous mixture.

Here the Particles are distributed in an uniform way, called as solution. Example rainwater, vinegar.

It consist of one phase, It can’t be separated out physically  

In heterogenous mixture, all the components are completely and equally mixed, particles can be seen under a microscope.

Here the Particles are distributed non-uniform way, Example: seawater, pizza, etc.

It can be in two or more phases and separated out physically

Learn more about heterogenous mixture, here:

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Given the following reaction: 2N2O5=2N2O4+O2, if the rate of oxygen production is 0.15M/min, determine:
a. The rate that N2O5 is consumed
b. The rate that N2O4 is produced

Answers

Answer:

a. [tex]r_{N_2O_5}=-0.075M/min[/tex]

b. [tex]r_{N_2O_4}=0.075M/min[/tex]

Explanation:

Hello.

In this case, according to the balanced chemical reaction, we can write the law of rate proportions:

[tex]\frac{r_{N_2O_5}}{-2} =\frac{r_{N_2O_4}}{2} =\frac{r_{O_2}}{1}[/tex]

Thus, we proceed as follows:

a. Since the rate of oxygen production is 0.15 M/min, we can make the following setup:

[tex]\frac{r_{N_2O_5}}{-2} =\frac{r_{O_2}}{1}\\\\r_{N_2O_5}=\frac{r_{O_2}}{-2} =\frac{0.15M/min}{-2}\\\\ r_{N_2O_5}=-0.075M/min[/tex]

b. Since the rate of oxygen production is 0.15 M/min, we can make the following setup:

[tex]\frac{r_{N_2O_4}}{2} =\frac{r_{O_2}}{1}\\\\r_{N_2O_4}=\frac{r_{O_2}}{2} =\frac{0.15M/min}{2}\\\\ r_{N_2O_4}=0.075M/min[/tex]

Best regards!

calculate the molarity of the solution in a flask that contains 2.50 moles of potassium sulfate in 125 mL of solution

Answers

Answer:

0.02 M

Explanation:

Molarity = moles/volume (L)

125 mL =0.125L

M = 2.5/0.125 = 0.02 M

What is the chemical formula for propane?
C38H
3C8H
C3H8
3CH8

Answers

Answer:

C38H

Thank You!  :)

C3H8 is the chemical formula for propane

how many molecules are present in a sample of carbon dioxide, CO2 with a mass of 168.2g?​

Answers

Answer:

2.3 X 10^24 atoms CO2

Explanation:

Answer:

2.30 x10²⁴ molecules CO2

Explanation:

Convert mass of CO2 to moles

Convert moles of CO2 to molecules using Avogadro's number.

168.2 g CO2 x 1 mole CO2 / 44 g CO2 x 6.022 x10²³ molecules CO2 / 1 mole CO2

= 2.30 x10²⁴ molecules CO2

This is 10th grade Chemistry

Answers

It’s the the 3rd one because equilibrium actually mean it’s equal or the same

How many moles are there 75.56 grams of KHCO3

Answers

Explanation:

mole = mass/molar mass

molar mass of KHCO3 = K + H + C + O3

39 + 1 + 12 + 3(16)

= 100g/mol

mass = 75.56

mole = 75.56/100

= 0.7556mol

Does anyone know how to do this?

Answers

Answer

find out the number of moles and use the molar ratio (numbers in front of formulas (in this case they are all 1) to determine how many moles of each product you are going to get theoretically

n=m/M is the equation to use to get moles here

30.8 gm/32.04 g/mol=0.9612 moles of the methanol and also of the formaldehyde so

0.9612 moles of the formaldehyde x molar mass (M) 30.73 g/mol= 29.54 gm which is the theoretical yield you already have the actual yield of 24.7 gm

then divide the actual by the theoretical to get the % yield which is 83.6%

Explanation:

How many grams are in 2.50 moles of copper?

Answers

Answer:

There are 63.546 grams in a 2.50 moles of copper.

Hi hello I need help ASAP
Determine the slope of this line
a.2.5
b.0.75
c.1
d.0.4​

Answers

Answer:

so I got it wrong the first time but you should pick two points on the line such as 4,3 and 9,5. Then use the equation y^2 - y^1/ x^2 - X^1. You would get 2/5 which is D.

Explanation

Can someone help me!!!!!

Answers

Answer:

Can u somehow make it bigger please?

Explanation:

The three types of intermolecular forces have different strengths. Rank
them from weakest to strongest.

Answers

There are three different types of intermolecular forces in terms of strength. They are (strongest to weakest) hydrogen bonding, dipole-dipole and Van der Waals' forces.

What will a balloon do to a cloth if its negatively charged

Answers

Answer:

This involves negatively charged particles (electrons) jumping to positively charged objects. When you rub the balloons against the fabric they become negatively charged. They take some of the electrons from the fabric and leave them positively charged.

Explanation:

Negative charges attract to positive charges. If a balloon is not rubbed with the wool cloth, it has an equal amount of negative to positive charges, so it will attract to a rubbed balloon. When both balloons are rubbed with the wool cloth, the both receive negative charges, so they will repel each other.

If 23.2 g of a given gas occupies a volume of 93.2 L at a particular temperature and pressure, what
mass of the gas occupies a volume of 10.4 L under the same conditions?

Answers

Answer:

2.59g

Explanation:

Using Avagadro's law equation as follows:

V1/n1 = V2/n2

Where;

V1 = initial volume (litres)

V2 = final volume (litres)

n1 = first amount of gas in grams

n2 = second amount of gas in grams

According to the information provided in this question, v1 = 93.2L, v2 = 10.4L, n1 = 23.2 g, n2 = ?

Using V1/n1 = V2/n2

93.2/23.2 = 10.4/n2

Cross multiply

93.2 × n2 = 23.2 × 10.4

93.2n2 = 241.28

n2 = 241.28/93.2

n2 = 2.588

n2 = 2.59g

The mass of the gas is 2.59g that occupies a volume of 10.4 L under the same conditions.

Avogadro's law equation:

V₁/n₁ = V₂/n₂

Where

V₁ = initial volume (litres)

V₂ = final volume (litres)

n₁ = first amount of gas in grams

n₂ = second amount of gas in grams

Given:

V₁ = 93.2L,

V₂ = 10.4L,

n₁ = 23.2 g,

To find:

n₂ = ?

On substituting the values:

93.2/23.2 = 10.4/n₂

93.2 * n₂ = 23.2 * 10.4

93.2* n₂ = 241.28

n₂ = 241.28/93.2

n₂ = 2.588

n₂ = 2.59g

Thus, the mass of the gas is 2.59g.

Find more information about Avogadro law here:

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Fish can be killed by a sudden increase in water
A. Temperature
B. Level
C. Density
D. Color

Answers

Answer:

i think it is A

Explanation:

Answer:

Explanation:

A. Most definitly Temperature!

Which statement about Niels Bohr's atomic model is true?
O Higher orbits have lower energies.
Each orbit has a specific energy level.
Electrons can exist in any energy level.
O Orbits close to the nucleus have no energy.
Hurry.

Answers

Answer:

o

Explanation:

Answer:

Each orbit has a specific energy level.

Explanation:

Bohr model

Which terms correctly identify the indicated structures in this sketch of a cell viewed under a microscope? Match each label to the correct cell part. Question 5 options: Golgi Apparatus Nucleus Endoplasmic Reticulum Mitochodrion Ribosome Lysosome
1.

2.

3.

4.

5.

6.

Answers

Answer:

Hello I saw you guys were having trouble please put me as the brainiest

Explanation:

1. Golgi Apparatus

2. Nucleus  

3. Endoplasmic Reticulum  

4. Mitochondrion  

5. Ribosome

6. Lysosome  

 

The solubility of potassium sulfate in water is 16 grams per 100
milliliter at 50 degrees centigrade. The smallest amount of water
which will dissolve 4 grams of this substance at the same temperature
will be

Answers

The answer is 25 grams for this question

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Continue tapping until the sample a) completely fills the tube b) is a couple millimeters high, c) has a single crystal in the tube. Then, with the a) closed, b) open end of the tube down, tap the sample down slowly or a) heat the tube up, b) drop the tube into a longer tube, c) shake the tube in the air to move the sample down faster. jamar has a 8 foot long piece of wood that he wants to cut to build a tree house if each is going to be 5/6 foot long, what is the greatest number of pieces he will be able to use Find two positive numbers such that their product is 180 and the sum of the first number squared plus twice times the second is a minimum. Identify the mapping diagram that represents the relation and determine whether the relation is a function.{(3, 6), (1, 6), (5, 6), (8, 6)}Which of the following is true?choice b.choice c.choice d.choice a. 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