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
Lina20 [59]
3 years ago
14

Select the correct answer.

Chemistry
1 answer:
Phoenix [80]3 years ago
7 0

Answer:

Molecular formula =  C₆H₁₂O₆

Explanation:

Given data:

Mass of hydrogen = 31.7 g

Mass of carbon = 283.4 g

Mass of oxygen = 377.4 g

Molar mass of compound = 176.124 g/mol

Molecular formula = ?

Solution:

Number of gram atoms of H = 31.7 / 1.01 = 31.4

Number of gram atoms of O = 377.4 / 16 = 23.6

Number of gram atoms of C = 283.4 / 12 = 23.6

Atomic ratio:

            C                      :      H                 :         O

           23.6/23.6         :     31.4/23.6     :       23.6/23.6

              1                      :        1.33              :        1

C : H : O =3 (1 : 1.33 : 1 )

Empirical formula is C₃H₄O₃.

Molecular formula:

Molecular formula = n (empirical formula)

n = molar mass of compound / empirical formula mass

Empirical formula mass  = 3×12+4+3×16 = 88

n = 176.124 / 88

n = 12

Molecular formula = n (empirical formula)

Molecular formula = 2 (C₃H₄O₃)

Molecular formula =  C₆H₁₂O₆

You might be interested in
The mole fraction of iodine, i2, dissolved in dichloromethane, ch2cl2, is 0.115. what is the molal concentration, m, of iodine i
german
The molality of a solute is equal to the moles of solute per kg of solvent. We are given the mole fraction of I₂ in CH₂Cl₂ is <em>X</em> = 0.115. If we can an arbitrary sample of 1 mole of solution, we will have:

0.115 mol I₂

1 - 0.115 = 0.885 mol CH₂Cl₂

We need moles of solute, which we have, and must convert our moles of solvent to kg:

0.885 mol x 84.93 g/mol = 75.2 g CH₂Cl₂ x 1 kg/1000g = 0.0752 kg CH₂Cl₂

We can now calculate the molality:

m = 0.115 mol I₂/0.0752 kg CH₂Cl₂
m = 1.53 mol I₂/kg CH₂Cl₂

The molality of the iodine solution is 1.53.
5 0
3 years ago
Which statement best descibes what happens when a person sees a orange t-shirt?
tangare [24]
B. light reflects off of the t shirt and enters the human eye
6 0
3 years ago
Read 2 more answers
Explain how transverse waves can be produced on a rope. Then describe how pieces of the rope move as waves pass.
andrew-mc [135]
Transverse waves can be produced on a rope by moving one end of the rope up and down.The movement causes motion in the particles that make up the rope and the rope itself becomes the medium. The particles move perpendicular to the propagation. The movement also causes crests(highest point of the wave) and troughs (lowest point of the wave) which move along the direction of propagation.
6 0
3 years ago
Which of the following is not found in the nucleus of an atom?
DochEvi [55]
Electron -  In an atom, the central part which is composed of neutrons and protons including quarks is called the nucleus. Whereas the electron is the particle with negative elementary electric charge can be found inside the atom surrounding the nucleus. 
6 0
3 years ago
When you wish upon a shooting<br>star you are actually wishing on<br>a(n)...​
Andreyy89
Meteor

Because they are the ones that get attracted to earth due to earth’s gravity and get burned in atmosphere due to friction caused by high speed
8 0
3 years ago
Other questions:
  • Give five examples of structures with this formula (c6h12). at least one should contain a ring, and at least one should contain
    10·1 answer
  • A compound has a pH of 3 what is the [H+] concentration?
    5·1 answer
  • Cual es la contribucion importante de los alquimistas
    9·1 answer
  • Which statement best explains why different gases effuse at different rates?
    11·2 answers
  • A car travels 66 kilometers in 3 hours. what is its speed
    7·2 answers
  • Potassium chlorate is a white, crystalline solid. It can be broken down into potassium chloride (a salt)
    5·2 answers
  • Which process is constructive?
    7·1 answer
  • A student visits the Grand Canyon in Arizona. He reads a sign that says this area has had a river breaking down, moving and depo
    12·1 answer
  • Predict the bond angles for each of the following labeled bonds.
    8·1 answer
  • The diagram shows a plant cell.
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!