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
Nonamiya [84]
3 years ago
8

How many moles of O are there in 41.8 grams of O?

Chemistry
1 answer:
il63 [147K]3 years ago
8 0

Answer:

\boxed {\boxed {\sf 2.61 \ mol \ O}}

Explanation:

To convert from grams to moles, the molar mass is used. This number tells us the grams per mole of a substance. It can be found on the Periodic Table. Look for oxygen.

  • Oxygen (O): 15.999 g/mol

Use this number as a ratio.

\frac {15.999 \ g \ O }{ 1 \ mol \ O }

Multiply by the given number of moles.

41.8 \ g \ O *\frac {15.999 \ g \ O }{ 1 \ mol \ O }

Flip the fraction so the grams of oxygen cancel.

41.8 \ g \ O *\frac { 1 \ mol \ O }{ 15.999 \ g \ O}

41.8  *\frac { 1 \ mol \ O }{ 15.999 }

\frac { 41.8 \ mol \ O }{ 15.999 }= 2.61266329146 \ mol \ O

The original measurement of grams has 3 significant figures (4, 1, and 8). Our answer must have the same. For the number we calculated, that is the hundredth place. The 2 in the thousandth place tells us to leave the 1.

2.61 \ mol \ O

41.8 grams of O has 2.61 moles of oxygen.

You might be interested in
When a substance changes from gas to liquid at a temperature below its boiling point, ____ has taken place.
puteri [66]
That would be evaporation.
Hope this helped!! xx
5 0
3 years ago
How does increasing temperature increase the number of reactions?
antiseptic1488 [7]

Answer:

Increasing the temperature increases reaction rates because of the disproportionately large increase in the number of high energy collisions. It is only these collisions (possessing at least the activation energy for the reaction) which result in a reaction

Explanation:

7 0
3 years ago
1 point
monitta

Answer: C) a redox reaction that produces an electric current

Explanation:

Chemical cell is a device which is used for the conversion of the chemical energy produced in a redox reaction into the electrical energy. The cell consists of the negative terminal called as anode where oxidation takes place and a positive terminal called as cathode where reduction takes place.

Electrolytic cell is a device which is used to carry out chemical reactions by the use of electrical energy. The cell consists of the negative terminal called as cathode where reduction takes place and a positive terminal called as anode where oxidation takes place.

7 0
3 years ago
Recycling one ton of paper is the equivalent of approximately how much of the following? a.) all of the below b.) 460 gallons of
jek_recluse [69]
I think the answer is a
5 0
3 years ago
Select the correct answer from each drop-down menu. How are real gases different from ideal gases? Real gases differ from ideal
lawyer [7]

They have a mass for the particles

There are no totally elastic collisions

There are intermolecular forces

8 0
3 years ago
Read 2 more answers
Other questions:
  • Anouk does 150 J of work using a hammer to pull a nail out of a piece of wood, and the hammer does 105 J of work on the nail. Wh
    10·2 answers
  • Carbon-12 and carbon-13 are isotopes of carbon. Which of the following statements is correct?
    7·1 answer
  • Scientific knowledge can withstand the test of time because A. exceptions can be made regarding scientific laws. B. it is open t
    9·2 answers
  • An aqueous solution of sodium thiosulfate releases heat when it crystallizes. What would happen when sodium thiosulfate crystals
    10·1 answer
  • If a gas occupies 3.06 liters at 760 mm Hg, what will be the volume at a pressure of 1900 mm Hg?
    11·1 answer
  • Start a conclusion based on the data from this experiment
    8·1 answer
  • ¿Se puede disolver acido sulfurico en NaCl ?
    6·1 answer
  • Why is heat needed to get a reaction to occur
    8·2 answers
  • I guess you didn’t mean what u wrote in that song about meee
    15·2 answers
  • A chemical reaction in which bonds are broken is usually associated with ________. a chemical reaction in which bonds are broken
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!