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
lisov135 [29]
1 year ago
14

Allicin is the compound responsible for the characteristic smell of garlic. An analysis of the compound gives the following perc

ent composition by mass: c: 44. 4 percent; h: 6. 21 percent; s: 39. 5 percent; o: 9. 86 percent. Calculate its empirical formula. What is its molecular formula given that its molar mass is about 162 g?.
Chemistry
1 answer:
saveliy_v [14]1 year ago
6 0

The molecular formula of the Allicin is, C₁₈H₃₀S₆O₃ and the empirical formula is C₆H₁₀S₂O

the molecular formula can be calculated as follows:

If a percentage is provided, we will assume that the entire mass is 100 grams.

As a result, each element's mass is equal to the percentage indicated.

C weighs 44.4 g.

H weighs 6.21 g.

S weighs 39.5 g.

O's mass is 9.86 g.

C has a molar mass of 12 g/mole.

H has a molar mass of 1 g/mole.

S has a molar mass of 32 g/mole.

O has a molar mass of 16 g/mole.

first, convert given masses into moles.

Moles of C =<u>      mass C       </u>= <u>    44.4 g    </u>  = 3.7 moles

                    molar mass C       12 g/mole.

Moles of H = <u>      mass H       </u>= <u>    6.21 g</u>.<u>    </u>  = 6.21 moles

                      molar mass           1 g/mole.

Moles of S = <u>      mass S       </u>= <u>    39.5 g.    </u>  = 1.23 moles

                      molar mass          32 g/mole.

Moles of O =  <u>      mass O       </u>= <u>    9.86 g.    </u>  = 0.62 moles

                      molar mass          16 g/mole.

then we find the mole ratio by divide each value of moles by the smallest number of moles calculated.

For C =<u> 3.7 moles</u> = 5.96 ≈ 6

           0.62 moles

For H = <u> 6.21  moles</u> = 10.01≈ 10

           0.62 moles

For S = <u> 1.23 moles</u> = 1.98 ≈ 2

           0.62 moles

For O = <u> 0.62 moles</u> = 1

             0.62 moles

The ratio of C : H : S : O = 6 : 10 : 2 : 1

The Empirical formula is C₆H₁₀S₂O

The empirical formula weight = 6(12) + 10(1) + 2(32) + 1(16) = 162 gram/eq

Now we have to calculate the molecular formula of the compound.

Formula used :

n= <u>molecular formula </u>= <u>486</u> =3

    empirical formula     162

Molecular formula = (C₆H₁₀S₂O)₃ =C₁₈H₃₀S₆O₃

Therefore, the molecular of the compound is, C₁₈H₃₀S₆O₃

learn more about molecular formula here: brainly.com/question/16904381

#SPJ4

You might be interested in
Hydrogen and chlorine gases react to form HCl. You and a friend are on opposite sides of a long hallway, you with H2 and your fr
natali 33 [55]

Answer: It is true that Your friend should release the Cl_{2} first.

Explanation:

The velocity of particles of a gas is inversely proportional to the mass of gas. This means that more is the mass of gas less will be its velocity.

Or, more will be the mass of gas more slowly it will move from one place to another.

The molar mass of chlorine gas is more than the molar mass of hydrogen gas. Therefore, chlorine gas will move slowly.

So, your friend should release the Cl_{2} gas first and then according to the length of room you should release the H_{2} gas.

Thus, we can conclude that it is true that Your friend should release the Cl_{2} first.

4 0
3 years ago
Identify the number and kinds of atoms present in a molecule of each compound. caffeine c8h10n4o2 iron iii sulfate fe2(so4)3
finlep [7]
This problem is very easy to answer. You simply have to look at the subscripts of each element of the compound.

1. For caffeine, which has a molecular formula of C₈H₁₀N₄O₂, it contains 8 atoms of Carbon, 10 atoms of Hydrogen, 4 atoms of Nitrogen and 2 atoms of Oxygen.

2. For Iron(III) Sulfate, which has a molecular formula of Fe₂(SO₄)₃, it contains 2 atoms of Iron, 3 atoms of Sulfur, and 12 atoms of Oxygen.
6 0
3 years ago
What patterns in the rock layer fossils helped you identify an extinction?
Dafna11 [192]
Often, the rock layers bookending the mass extinction are noticeably different in their compositions. These changes in the rocks show the effects of environmental disturbances that triggered the mass extinction and sometimes hint at the catastrophic cause of the extinction
8 0
3 years ago
Read 2 more answers
Explain why vanadium (radius=134 pm) and copper (radius=128 pm) have nearly identical atomic radii, even though the atomic numbe
Viktor [21]
<span>There are few main factors affecting the atomic radii, the outermost electrons and the protons in the nucleus and also the shielding of the internal electrons. I would speculate that the difference in radii is given by the electron clouds since the electrons difference in these two elements is in the d orbital and both has at least 1 electron in the 4s (this 4s electron is the outermost electron in all the transition metals of this period). The atomic radio will be mostly dependent of these 4s electrons than in the d electrons. Besides that, you can see that increasing the atomic number will increase the number of protons in the nucleus decreasing the ratio of the atoms along a period. The Cu is an exception and will accommodate one of the 4s electrons in the p orbital.

</span><span>Regarding the density you can find the density of Cu = 8.96g/cm3 and vanadium = 6.0g/cm3. This also correlates with the idea that if these two atoms have similar volume and one has more mass (more protons;  density is the relationship between m/V), then a bigger mass for a similar volume will result in a bigger density.</span>
7 0
3 years ago
Jupiter has about 317 times more mass than Earth. What can you infer from this fact?
Ganezh [65]

Answer:

B

Explanation:

it is bigger then earth so it will have a greater mass.

6 0
3 years ago
Read 2 more answers
Other questions:
  • A thin sheet of aluminum can block _____.
    15·1 answer
  • What element has these characteristics MgX2, Very low density, Highly reactive, Diatomic
    12·1 answer
  • Using the formula for velocity shown below, what is the average velocity of a bicyclist who biked 20 miles north of where he beg
    13·1 answer
  • Which of the following statements about metallic bond are correct?
    15·1 answer
  • Which of the following is the largest contributor to the salt ions in the ocean?Select one of the options below as your answer:
    11·1 answer
  • What element is CU?plz helpppp
    9·2 answers
  • Calculate the concentration of all ions present in each of the following solutions of strong electrolytes.
    15·1 answer
  • How does an increase in concentration affect a chemical reaction? (3 points)
    14·1 answer
  • Please help me I promise I will give brainliest!
    13·1 answer
  • What are the main separation methods used in steam cracking process ?<br>​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!