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
Mekhanik [1.2K]
2 years ago
14

Calculate each of the following quantities:

Chemistry
1 answer:
balandron [24]2 years ago
5 0

The number of moles in 78.9 g of sodium perchlorate is 0.644 moles and 3.876 x 10²³ formula units are particles.

<h3>What are formula units?</h3>

Moles are converted to formula units by multiplying them by 6.02 x 1023, or Avogadro's number (Na). The moles and masses of tiny particles are estimated using this method.

Given that the mass of sodium perchlorate is 78.9 g

The molar mass of sodium perchlorate is 122.44 g/mol

Moles of sodium perchlorate will be

Moles (n) = mass ÷ molar mass

n = 78.9 g  ÷ 122.44

n = 0.644  moles

If 1 mole = 6.02 x 10²³

Then, 0.644 moles = 3.876 x 10²³ particles

Thus, there are 0.644 moles of sodium perchlorate in 78.9 g.

Learn more about formula units, here:

brainly.com/question/15488332

#SPJ4

You might be interested in
REALLY NEED HELP. TAKING A TIMED TEST. 15 POINTS
zimovet [89]
The F atom . Oxygen has a -2 charge and fluorine has a +1 charge
7 0
3 years ago
Which of the following is a value of biodiversity?
Sever21 [200]
Biodiversity has a fundamental value to humans because we are so dependent on it for our cultural, economic, and environmental well-being. Some argue that it is our moral responsibility to preserve the Earth’s incredible diversity for the next generation. Others simply like knowing that nature’s great diversity exists and that the opportunity to utilize it later, if need be, is secure. Scientists value biodiversity because it offers clues about natural systems that we are still trying to understand. Arguably, the greatest value to humans, however, comes from the ?ecosystem services? it provides.

Biodiversity forms the backbone of viable ecosystems on which we depend on for basic necessities, security, and health. By breaking down plant and animal matter, for example, insects and other invertebrates make nutrients available to plants and are integral to the carbon and nitrogen cycles. Other species pollinate crops, an essential service for farmers. Healthy ecosystems can mitigate or prevent flooding, erosion, and other natural disasters. These ecosystem services also play a hand in the functioning of our climate and in both air and water quality.

4 0
3 years ago
How will the price of a product impact on the profits of the entrepreneur​
taurus [48]

Answer:

The higher your price, the less volume you have to produce for a given dollar amount of profit! Even a small price increase can generate significant additional profit. ... When a business comes out with a new product or service and they are the first to market, they may be able to charge high prices initially.

Explanation:

3 0
3 years ago
Compute 214.056 + 9.3456. Round the answer appropriately
shusha [124]
214.0560
+ 9.3456
=223.4016
3 0
3 years ago
What group of elements generally have the lowest second ionization energy?
ICE Princess25 [194]
<span>By definition, the first ionization energy is the energy required to remove the most loosely held electron from one mole of gaseous atoms to produce 1 mole of gaseous ions each with a charge of 1+. </span><span />
4 0
3 years ago
Read 2 more answers
Other questions:
  • 5. Which of the following characteristics in a chemical reaction indicates
    15·1 answer
  • Multicellularity only occurs among the what domain?
    10·1 answer
  • Identify the solute and the solvent used in this investigation.
    7·1 answer
  • The photos below show four pairs of objects.
    7·1 answer
  • Which is a component of John Dalton’s atomic theory?
    10·2 answers
  • Find the best Match of the following *
    11·2 answers
  • Please answer quickly
    5·1 answer
  • Plz help ASAP <br> Dhdhdg
    7·1 answer
  • Ocean currents carry water in a certain direction
    9·1 answer
  • Which of the following IS a part of the Kinetic Molecular Theory (KMT)?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!