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
tiny-mole [99]
3 years ago
5

Give the mass percent of carbon in C14H19NO2?

Chemistry
2 answers:
Pachacha [2.7K]3 years ago
7 0
72.0726 is the percent for carbon
denpristay [2]3 years ago
4 0

Answer:

The mass percent of carbon in C₁₄H₁₉NO₂ is 72.1%.

Explanation:

To calculate the mass percent of carbon in C₁₄H₁₉NO₂ we have to follow two simple steps:

1st) Look for the <u>atomic weight of each element</u> in the Periodic Table and then <u>multiply each one by its subscript</u> in the molecule and finally <u>sum all</u> of them to find the molar weight of the molecule:

  • Carbon atomic weight . Carbon subscript = 12 . 14 = 168g
  • Hydrogen atomic weight . Hydrogen subscript = 1 . 19 = 19g
  • Nitrogen atomic weight . Nitrogen subscript = 14 . 1 = 14g
  • Oxygen atomic weight . Oxygen subscript = 16 . 2 = 32g

The molar weight of C₁₄H₁₉NO₂ is: 168g + 19g + 14g +32g = 233g.

2nd) Find the mass percent of carbon with a <u>Rule of three</u>:

If 233g represents the 100% of mass, the 168g of carbon in the molecule will represents the 72.1% of mass.

The Rule of three is:

233g ------------- 100%

168g ------------- = (168 . 100)/233 = 72.1% mass of carbon.

You might be interested in
What is the mass of 0.28 mole of iron?
vredina [299]

Answer:

Your answer should be 15.68 grams.

Explanation:

Seeing as 1 mole has a mass of 56 g, 56*0.28 would get you 15.68 g.

6 0
3 years ago
By mistake, you added salt instead of sugar to the<br> oil. How can you remove the salt?
Jet001 [13]

Answer:

by adding water into the mix

Explanation:

this will dissolve the salt

5 0
3 years ago
Read 2 more answers
Determine the bonding type for boron trihydride given the electronegativity on the Pauling scale for boron is 2.0 and for hydrog
Anika [276]

Answer: The bond between boron and hydrogen in boron trihydride is covalent bond.

Explanation:

The type of bonding between the atoms forming a compound is determined by using the electronegativity difference between the atoms. According to the pauling's electronegativity rule:

  • If \Delta \chi=0, then the bond is non-polar.
  • If \Delta \chi\leq 1.7, then the bond will be covalent.
  • If \Delta \chi>1.7, then the bond will be ionic.

We are given:

Electronegativity for boron = 2.0

Electronegativity for hydrogen = 2.1

\Delta \chi=\chi_{H}-\chi_{B}\\\\\Delta \chi=2.1-2.0=0.1

As, \Delta \chi is less than 1.7 and not equal to 0. Hence, the bond between boron and hydrogen is covalent bond.

3 0
3 years ago
rank the following list of aqueous solutions and solvents according to decreasing vapor pressure the substance with the higher v
Tpy6a [65]

Answer: 0.050M urea, 0.10M glucose, 0.2M sucrose, pure water

Explanation:

Vapor pressure refers to the ease with which a liquid substance is transformed into vapour. High vapour density implies that the liquid is easily transformed into gas. Pure water is expected to have the lowest vapour density since it is held by strong intermolecular forces in the liquid state. Urea is an organic liquid held by weak Van der Waals forces hence its extremely high vapor pressure.

8 0
3 years ago
HEY EVERYONE its poofett my account got deleted for no absolute reason! &gt;:D​
PilotLPTM [1.2K]

Answer:

am very sorry

Explanation:

5 0
2 years ago
Read 2 more answers
Other questions:
  • Calculate the freezing point of a 0.08500 m aqueous solution of nano3. the molal freezing-point-depression constant of water is
    11·2 answers
  • What is the resulting formula unit when magnesium and nitrogen bond
    7·2 answers
  • Much like its household namesake, a molecular sieve utilizes differences in what property of substances to separate the componen
    7·1 answer
  • Which is the best metal to use in an alloy to increase its electrical conductivity?
    7·2 answers
  • What is A mixture of very hot gas, falling ash and magma rock
    9·1 answer
  • How many moles of SnF₂ will be produced along with 48 grams of H₂? *
    12·1 answer
  • 3.04 Quiz: Chemical Reactions Please help me
    15·1 answer
  • Wwwwwwwwwwwwwwwwwwwwwwwweweewewwewweewweeweeweeweweweeeweew
    14·1 answer
  • Yeast cells thrive on ice cold water *<br> True<br> оо<br> False
    9·1 answer
  • 3. If you want to produce 12.6 g of HCl, how many grams of PCls will you need?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!