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
Stella [2.4K]
3 years ago
11

Succinic acid is a substance produced by lichens. Chemical analysis indicates it is composed of 40.68% C, 5.08% H, and 54.24% O.

Determine the empirical formula.
Chemistry
1 answer:
zimovet [89]3 years ago
5 0

Answer:  

C₂H₃O₂

Explanation:  

Assume that you have 100 g of the compound.  

Then you have 40.68 g C, 5.08 g H, and 54.24 g O.  

1. Calculate the <em>moles of each element</em>.

Moles of C  = 40.68 × 1/12.01   = 3.387 mol C

Moles of H =    5.08 × 1/1.008   = 5.010 mol H

Moles of O = 54.24 × 1/16.000 = 3.390 mol O

===============

2. Calculate the <em>molar ratios</em>.  

Divide all values by the smallest number.

C:  3.387/3.387 = 1

H: 5.010/3.387 = 1.479

O: 3.390/3.387 = 1.001

===============

3. <em>Multiply each ratio by 2 </em>

C:  2 × 1       = 2

H: 2 × 1.479 = 2.958

O: 2 × 1.001 = 2.002

===============

4. Determine <em>the empirical formula</em>

Round off all numbers to the closest integer.  

C: 2

H: 3

O: 2

The empirical formula is C₂H₃O₂.  

You might be interested in
In a combustion reaction, one of the reactants is always _______________.
QveST [7]
In a combustion reaction, one of the reactants is always oxygen.
4 0
3 years ago
Read 2 more answers
Resonance in air columns is used in which of these musical Instruments?
AnnZ [28]
Resonance in air columns is used in a variety of musical woodwind instruments. Something like a flute for example uses resonance to make sound. Not sure what instruments you are talking about unless you provide a list.
5 0
3 years ago
Read 2 more answers
5 meters
Feliz [49]

Answer:

9

Explanation:

7 0
2 years ago
What is coke in chemistry?<br><br>​
Igoryamba
Cole coke coke coke coke coke coke coke
6 0
2 years ago
Read 2 more answers
The formula for the table salt is NaCl. Is table salt ionic or covalent? Explain.
mel-nik [20]

Answer:

ionic

it is a mixture of a nonmetal and a metal which is what makes ionic compounds

covalent is a nonmetal and nonmetal

Explanation:

6 0
2 years ago
Other questions:
  • The ratio of carbon atoms to hydrogen atoms to oxygen atoms in a molecule of dicyclohexyl maleate is 4 to 6 to 1. what is its mo
    9·2 answers
  • All of the following can be used to define a base except (3 points) Question 1 options: 1) a hydronium ion donor in a reaction 2
    8·1 answer
  • How many grams of testosterone, C19H28O2 (288.4 g/mol), must be dissolved in 299.0 grams of benzene to reduce the freezing point
    6·1 answer
  • A circuit is shown in the picture above. Energy is transferred first from the battery to the circuit wire and then from the circ
    14·2 answers
  • Dwayne has a green mineral. It most likely contains
    5·2 answers
  • Solutions of lead(II) nitrate and potassium iodide were combined in a test tube.
    15·1 answer
  • Identify these element:a non-metal in the same group as leads?
    13·1 answer
  • ____ ha no nucleus.
    15·2 answers
  • Which answer best describes why water dissolve most salts? Water is polar and salts form ions in solution. Water is nonpolar and
    14·2 answers
  • 3. as a substitution reaction occurs, the number of electrons shared between
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!