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
svetoff [14.1K]
3 years ago
8

A compound is found to contain 64.80% carbon. 13.62% hydrogen. And 21.58% oxygen by weight. What is the empirical formula for th

is compound?
Show all your work

Chemistry
2 answers:
Trava [24]3 years ago
7 0

Answer:

Look at sheet

Explanation:

Ight so like I'm too lazy to type this out just look at my work. Idk why it works I just know it works

oksano4ka [1.4K]3 years ago
6 0

Answer: C4H10O

Explanation: First identify the number of moles on each atom by having the relationship of 1 mole = molar mass

Second step is to divide the lowest amount to each atom.

Third the answer will be the number of individual atoms on each element in the empirical formula.

You might be interested in
During an experiment, Sandy recorded incorrect observations and measurements. What would be the most
ruslelena [56]
Sandy would reach an incorrect outcome.that's because she will repeat this mistake in the future too.
3 0
3 years ago
The number of moles of solute in 200.ml of a 0.500 m solution is
IrinaK [193]

Answer:

I believe the answer is 0.100.

Explanation:

Hope my answer has helped you!

8 0
3 years ago
The _____ method of pest control combines chemical and non-chemical methods and emphasizes the use of natural toxins.
labwork [276]
The answer to the question stated above is:
Integrated Pest Management is a method of agricultural pest control that combines chemical and non <span>chemical methods and emphasizes the use of natural toxins and effective pesticide.

>>N</span><span>atural toxins in plants can also be isolated and applied to crops like synthetic pesticides.</span>
4 0
3 years ago
Read 2 more answers
Titanium has an HCP crystal structure, a c/a ratio of 1.669, an atomic weight of 47.87 g/mol, and a density of 4.51 g/cm3. Compu
IrinaK [193]

Answer : The atomic radius for Ti is, 1.45\times 10^{-8}cm

Explanation :

Atomic weight = 47.87 g/mole

Avogadro's number (N_{A})=6.022\times 10^{23} mol^{-1}

First we have to calculate the volume of HCP crystal structure.

Formula used :  

\rho=\frac{Z\times M}{N_{A}\times V} .............(1)

where,

\rho = density  = 4.51g/cm^3

Z = number of atom in unit cell (for HCP = 6)

M = atomic mass  = 47.87 g/mole

(N_{A}) = Avogadro's number  

V = volume of HCP crystal structure = ?

Now put all the values in above formula (1), we get

4.51g/cm^3=\frac{6\times (47.87g/mol)}{(6.022\times 10^{23}mol^{-1}) \times V}

V=1.06\times 10^{-22}cm^3

Now we have to calculate the atomic radius for Ti.

Formula used :

V=6R^2c\sqrt{3}

Given:

c/a ratio = 1.669 that means,  c = 1.669 a

Now put (c = 1.669 a) and (a = 2R) in this formula, we get:

V=6R^2\times (1.669a)\sqrt{3}

V=6R^2\times (1.669\times 2R)\sqrt{3}

V=(1.669)\times (12\sqrt{3})R^3

Now put all the given values in this formula, we get:

1.06\times 10^{-22}cm^3=(1.669)\times (12\sqrt{3})R^3

R=1.45\times 10^{-8}cm

Therefore, the atomic radius for Ti is, 1.45\times 10^{-8}cm

3 0
3 years ago
The accepted value for the percent by mass of water in a hydrate is 36.0%. In a laboratory activity, a student determined the pe
valentina_108 [34]
The original or accepted value for the percent by mass of water in a hydrate = 36%
Percen by mass of water in the hydrate determined by the student
in the laboratory = 37.8%
So the difference between the actual and the percent by mass in water determined by student = (37.8 - 36.0)%
             = 1.8%
So the percentage of error made by the student = (1.8/36) * 100 percent
                                                                             = (18/360) * 100 percent
                                                                             = ( 1/20) * 100 percent
                                                                              = 5 percent
So the student makes an error of 5%. Option "1" is the correct option.
4 0
3 years ago
Other questions:
  • Which statement best describes a possible way that
    14·1 answer
  • In Experiment 9, a 1.05 g sample of a mixture of NaCl (MW 58.45) and NaNO2 (MW 69.01) is reacted with excess sulfamic acid. The
    13·1 answer
  • Which observation illustrates the law of conservation of mass?
    8·2 answers
  • Why is magnification important to the study of life science?
    8·1 answer
  • Which of the following is a consequence of humans using fossil fuels?
    15·1 answer
  • A student went outside every night for eight nights to look at the Moon. The pictures below show how the Moon looked each
    13·1 answer
  • The difference between asexual and sexual reproduction is _______. Please help me with this, thank you.
    7·1 answer
  • Please help!
    15·2 answers
  • Scientists used a powerful telescope to discover the caloris crater on mercury
    6·1 answer
  • Nevermind, scratch the question
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!