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
ahrayia [7]
3 years ago
11

A pure substance is found to contain 53.7% fluorine and 46.3% xenon by mass. What is the empirical formula of this substance?

Chemistry
1 answer:
evablogger [386]3 years ago
3 0

Answer: XF8

Explanation:

Empirical Formular shows the simplest ratio of elements in a compound.

 Xe = 46.3%             F  = 53.7%

Divide the percentage composition of each element by the atomic  mass.

Xe = 46.3/ 131.3                      F= 53.7/ 19

      = 0.353( approx)               =  2.826 (approx)

Divide through with the smallest of the answers gotten in previous step.

 Xe = 0.353 / 0.353                F = 2.826/ 0.353

       =  1                                       = 8.0

Empirical formular = XF8

You might be interested in
What is the Golgi body made of?
Alenkasestr [34]

Explanation:

integral proteins...nns

5 0
3 years ago
If 85.0 grams of ethanol reacts, how many grams of carbon dioxide are produced?
Alenkinab [10]

Answer:

162.4g of CO2 are produced

Explanation:

The combustion of ethanol, C2H5OH, occurs as follows:

2C2H5OH + 7O2 → 4CO2 + 6H2O

<em>Where 2 moles of C2H5OH produce 4 moles of CO2.</em>

<em />

To solve this question we need to convert the mass of ethanol to moles. Then, the moles of ethanol to moles of CO2 using the balanced reaction and to mass:

<em>Moles C2H5OH -Molar mass: 46.07g/mol-</em>

85.0g * (1mol / 46.07g) = 1.845 moles C2H5OH

<em>Moles CO2:</em>

1.845 moles C2H5OH * (4mol CO2 / 2mol C2H5OH) = 3.69 moles CO2

<em>Mass CO2-Molar mass: 44.01g/mol-:</em>

3.69 moles CO2 * (44.01g/mol) =

<h3>162.4g of CO2 are produced</h3>
6 0
3 years ago
Solid to liquid change melting​
Maurinko [17]

Answer:

The process of a solid becoming a liquid is called melting. (an older term that you may see sometimes is fusion). The opposite process, a liquid becoming a solid, is called solidification. For any pure substance, the temperature at which melting occurs—known as the melting point—is a characteristic of that substance.

Hope this helps, have a wonderful day/night, stay safe, happy holidays, and merry christmas!

3 0
3 years ago
According to the pattern of carbon and hydrogen atoms in alkynes, if a molecule has five carbon atoms, how many hydrogen atoms d
Andrei [34K]
On PLATO the answer is D.) 8
4 0
3 years ago
Read 2 more answers
60 points! Would it be a chemical reaction if there was a chemical and the same chemical was in another aqueous solution?
blondinia [14]

Hey there!!

since bubble reaction means chemical as you said, then yes its a chemical reactant.


Hope this helped an have a great day

4 0
3 years ago
Other questions:
  • Which statement accurately describes the charge of the nucleus of an atom? A. The nucleus can be either positively charged or ne
    13·2 answers
  • Anhydrous calcium chloride removes water vapor from the air inside a container having an air-tight seal called a desiccator. Exp
    12·1 answer
  • Explain how a bond forms between sodium and chlorine in sodium chloride (NaCl).
    8·1 answer
  • The average surface temperature in Jupiter is -162 degrees Fahrenheit below 0 is the average surface temperature on Jupiter
    8·1 answer
  • Which of the following addresses the economic question of how to produce?
    11·1 answer
  • the Rockies and the Appalachians are two major mountain ranges in the United States. Which type of plate movement caused these m
    10·1 answer
  • I need help with this chem problem!
    11·1 answer
  • Iron + --&gt; iron sulphate + copper What is missing ? Iron sulphate Copper sulphate Copper oxideIron oxide
    14·1 answer
  • Venus is making soup. She is putting her ingredients into a pot of water. She places small amounts of the ingredients into water
    9·2 answers
  • PLS HELP ILL GIVE BRAINLIEST
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!