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
Yanka [14]
2 years ago
9

A sample of a compound is found to contain 40.0% carbon, 6.7% hydrogen, and 53.3% oxygen. What is the empirical formula of this

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

Answer:

The empirical formula is CH2O, and the molecular formula is some multiple of this

Explanation:

In 100 g of the unknown, there are 40.0⋅g12.011⋅g⋅mol−1 C;  6.7⋅g1.00794⋅g⋅mol−1 H; and  53.5⋅g16.00⋅g⋅mol−1 O.

We divide thru to get, C:H:O = 3.33:6.65:3.34. When we divide each elemental ratio by the LOWEST number, we get an empirical formula of CH2O, i.e. near enough to WHOLE numbers. Now the molecular formula is always a multiple of the empirical formula; i.e. (EF)n=MF.So 60.0⋅g⋅mol−1=n×(12.011+2×1.00794+16.00)g⋅mol−1.Clearly n=2, and the molecular formula is 2×(CH2O) = CxHyOz.

You might be interested in
Identify, and briefly explain, two key elements needed for fossilization.<br><br>Please Help Me!!!
Yakvenalex [24]
Body elements and trace fossils I believe
7 0
3 years ago
Read 2 more answers
How were atomic models developed when no one had seen an atom?
AnnyKZ [126]
Atomic models were developed through indirect observation even though no one had seen an atom. There were many experiments of which I know nothing about, but in the end the scientists managed to come up with a formula and various models to describe atoms. 
4 0
3 years ago
A sample of a substance has a mass of 4.2 grams and a volume of 6 milliliters
allsm [11]

Answer:

Density of the substance is 0.7

Explanation:

4.2/6 = 0.7

6 0
3 years ago
Read 2 more answers
Bakit mahalaga ang paghahanda ng pambansang badyet sa isang taon?​
Andreas93 [3]

Answer:

no lo sé chico ve a morir en un agujero

Explanation:

8 0
3 years ago
Um.. i dont need help lol
Tasya [4]

Answer:

thats cool mate

Explanation:

hope ya have a good day, im answering just for the points tbh

7 0
3 years ago
Read 2 more answers
Other questions:
  • Write a summary of a toms​
    10·1 answer
  • Which of the following is a chemical property?
    12·2 answers
  • BRANLIEST AND 100 POINTS.<br><br> Compare and contrast the structure of yeast and algae.
    7·1 answer
  • Which state of matter has a definite volume, but does not have a definite shape?
    11·1 answer
  • Each molecule of hydrochloric acid, hcl, contains one atom of hydrogen and
    15·1 answer
  • Which of the following is a strong acid? A) HCIO2 B) HF C) HBO3 D) H2SO3 E) H2SO4
    5·1 answer
  • According to Boyle's law, the volume of a gas is inversely proportional to its pressure if the _____. number of particles and te
    12·1 answer
  • Calcium and sulfur Enter the ions formed by these elements and separate your answers with a comma (e.G., Sr2+,As3−).
    6·1 answer
  • What do the forms of the highlighted limbs in the illustration tell you about their functions in each animal?
    9·2 answers
  • How many liters are equal to 8 megaliters (ML)?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!