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
Harman [31]
3 years ago
15

How many moles are in a sample of 4.57 x 10^24 atoms of neon (Ne)?

Chemistry
1 answer:
balu736 [363]3 years ago
4 0

Hello!

To find the number of moles in a sample of 4.57 x 10^24 atoms, we need to use Avogadro's number, which is 1 mole = 6.02 x 10^23.

To find how many moles, we divide the given sample by Avogadro's number.

(4.57 x 10^24) / (6.02 x 10^23) ≈ 7.59136

Using the amount of significant figures given (3), the answer is 7.59 moles of neon (Ne).

You might be interested in
Large air masses moving across and area are called _____?
faltersainse [42]
Fronts. This includes cold fronts and warm fronts. Hoped this helped!
6 0
3 years ago
Read 2 more answers
Why does neon have a higher first ionization energy than fluorine
SOVA2 [1]
I’m just here for the points sorry
4 0
3 years ago
Answer all parts of the following questions on Particle Stoichiometry.
Sever21 [200]
1. Translate, predict the products, and balance the equation above. 

Li + Cu(NO3)2 = Li(NO3)2 + Cu

2. How many particles of lithium are needed to produce 125 g of copper? 

125 g Cu ( 1 mol / 63.55 g ) (1 mol Li / 1 mol Cu ) ( 6.022 x 10^23 particles / 1 mol ) = 1.18x10^24 Li particles

3. How many grams of lithium nitrate are produced from 4.83E24 particles of copper (II) nitrate?

4.83E24 particles of copper (II) nitrate ( 1 mol / 6.022x10^23 particles ) (1 mol Li(NO3)2 / 1 mol Cu(NO3)2 ) ( 130.95 g / 1 mol ) = <span>1043.77 grams Li(NO3)2</span>
3 0
3 years ago
A certain chemical reaction releases of heat for each gram of reactant consumed. How can you calculate what mass of reactant wil
WARRIOR [948]

Answer:

Specific heat capacity formula

Explanation:

The heat capacity gives the exact heat energy at which a given mass of a substance is heated from one temperature to another.

This formula can help determine how much heat is gained or lost during the reaction and is given by:

Q = mcΔT

where:

Q = heat energy in Joules or Calories

m - mass of the substance (g)

c = Specific heat capacity (J/kg°C)

ΔT = change in temperature = (final temp - initial temp) (°C)

I hope this was helpful.

3 0
3 years ago
When standing in sunlight, what vitamin does your body synthesize ?
loris [4]

Answer:

There's good reason why vitamin D is called “the sunshine vitamin.” When your skin is exposed to sunlight, it makes vitamin D from cholesterol. The sun's ultraviolet B (UVB) rays hit cholesterol in the skin cells, providing the energy for vitamin D synthesis to occur.

Explanation:

4 0
3 years ago
Read 2 more answers
Other questions:
  • What chemical element would you expect to find in amino acids?
    13·1 answer
  • Choose all that apply. The metric system includes units for measuring:
    15·2 answers
  • think of one or two products sold in this country that are tested using the scientific method before they are placed on the mark
    13·1 answer
  • How could energy conservation help to control or decrease air, water, and land pollution?
    9·1 answer
  • Which of the following laws states that the volume of a gas and the amount of a gas in moles are directly proportional?
    15·1 answer
  • A spirit burner used 1.00 g methanol to raise the temperature of 100.0 g water in a metal can from 28.00C to 58.0C. Calculate th
    15·1 answer
  • 3. Ethanol has a density of 0.800 g/mL. <br> a. What is the mass of 225 mL of ethanol?
    7·1 answer
  • How many bromide ions are there in 1.5 moles of MgBr2??
    8·1 answer
  • Ionization, radical and valency electron
    7·1 answer
  • How many variance electrons in Aluminium? Is it 3
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!