1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ivahew [28]
4 years ago
10

A scientist has two samples of gas: The first sample contains one mole of argon atoms and has a mass of 39.948 g; the second sam

ple contains one mole of helium atoms and has a mass of only 4.0026 g. How does the number of atoms in each sample compare? Explain.
Chemistry
1 answer:
V125BC [204]4 years ago
4 0

There are 6.022 × 10²³ atoms in 39.948 g of argon and 4.0026 g of helium.

Explanation:

39.945 g/mole is the molar mass of argon so 39.948 g of argon are equal to 1 mole of argon.

4.0026 g/mole is the molar mass of helium so 4.0026 g of helium are equal to 1 mole of helium.

We know that Avogadro's number tell us the number of particles in 1 mole of substance which is 6.022 × 10²³.

So in 39.948 g of argon and 4.0026 g of helium contains the same number of atoms, 6.022 × 10²³.

Learn more about:

Avogadro's number

brainly.com/question/14148121

brainly.com/question/1445383

brainly.com/question/1528951

#learnwithBrainly

You might be interested in
The photo shows an animal called a water flea. Which level of organization is it an example of?
Citrus2011 [14]

Answer:

A. organism i think

8 0
4 years ago
Read 2 more answers
Where is the earth curst thinkest
Dafna11 [192]
The crust of the Earth is thickest beneath the continents. 
6 0
3 years ago
What is this process of producing more offspring than possibly survive called?
tamaranim1 [39]

Darwin's Theory of Evolution by Natural Selection.

Darwin divided this theory into multiple parts but overall it fits into Darwin's Theory of Evolution by Natural Selection, so that would be your answer.

In case you're wondering about the others:

1. Organisms produce more offspring than actually survive.

2. Every organism must struggle to survive.

3. There is variation within a species.

4. Some variations allow members of a species to survive and reproduce better than others.

5. Organisms that survive and reproduce pass their traits to their offspring, and the helpful traits gradually appear in more and more of the population.

(these are brief explanations, they go into more detail)

Good luck!

4 0
3 years ago
How does matter change phase?
crimeas [40]

Answer:

Phase changes typically occur when the temperature or pressure of a system is altered. When temperature or pressure increases, molecules interact more with each other. When pressure increases or temperature decreases, it's easier for atoms and molecules to settle into a more rigid structure.

Explanation:

Hope it helps UvU

7 0
3 years ago
Which best describes sodium chloride (NaCl)?
OverLord2011 [107]

Answer: NaCl is an ionic compound

Explanation: Sodium Chloride is formed from Na+ and Cl- ions.

It is soluble in water, it has crystalline structure, it has high melting point and

It is insulator as solid form. Water solution leads current.

4 0
3 years ago
Other questions:
  • In your body, carbon dioxide, CO2, dissolves in the blood to form carbonic acid, H2CO3 as follows:
    12·1 answer
  • Chlorination of 2-butanone yields two isomeric products, each having the molecular formula C4H7ClO.
    8·1 answer
  • List two chemical properties and two physical properties of the element magnesium. (You may use your textbook.)
    14·2 answers
  • Find the linear function Cequals​f(F) that gives the reading on the Celsius temperature scale corresponding to a reading on the
    8·1 answer
  • Calculate the change in energy of an atom that emits a photon of wavelength 2.21 meters. (Planck’s constant is 6.626 x 10-34 jou
    10·1 answer
  • At a constant temperature a container of helium gas with an unknown volume changes pressure from 1 atm to 2 atm. If at 2 atm the
    12·1 answer
  • An ice cream company decides to make a new lower calorie flavor,but testers reported that the flavor wasnt as good as the origin
    12·1 answer
  • How many g of zinc are required to produced 50g of hydrogen when reacting zinc with sulphuric acid?
    10·2 answers
  • Elements have been discovered with up to how many energy levels
    12·1 answer
  • Calculate the moles of calcium oxalate formed from 5 grams of potassium oxalate (molar mass 184.24 g/mol) the mole mole ratio fr
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!