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
shutvik [7]
3 years ago
10

Given the following chemical equation, if 50.1 grams of silicon dioxide is heated with excess carbon and 32.3 grams of silicon c

arbide is produced, what is the percent yield for this reaction?SiO2 (s) + 3C (s) --->SiC (s) + 2CO (g) 97% 75% 103% 48%
Chemistry
1 answer:
aivan3 [116]3 years ago
3 0

Answer:

97%.

Explanation:

We'll begin by writing the balanced equation for the reaction. This is given below:

SiO2 (s) + 3C (s) —> SiC(s) + 2CO(g)

Next, we shall determine the mass of SO2 that reacted and the mass of SiC produced from the balanced equation. This is illustrated below:

Molar mass of SiO2 = 28 + (16x2) = 60 g/mol

Mass of SO2 from the balanced equation = 1 x 60 = 60 g

Molar mass of SiC = 28 + 12 = 40 g/mol

Mass of SiC from the balanced equation = 1 x 40 = 40 g.

From the balanced equation above,

60 g of SiO2 reacted to produce 40 g of SiC.

Next, we shall determine the theoretical yield of SiC. This can be obtained as follow:

From the balanced equation above,

60 g of SiO2 reacted to produce 40 g of SiC.

Therefore, 50.1 g of SiO2 will react to produce = (50.1 x 40)/60 = 33.4 g of SiC.

Therefore, the theoretical yield of SiC is 33.4 g

Finally, we shall determine the percentage yield of SiC as follow:

Actual yield of SiC = 32.3 g

Theoretical yield of SiC = 33.4 g

Percentage yield =?

Percentage yield = Actual yield /Theoretical yield x 100

Percentage yield = 32.3/33.4 x 100

Percentage yield = 96.7 ≈ 97%

Therefore, the percentage yield of the reaction is 97%.

You might be interested in
The________ cation will precipitate after the_________ step. Then the _________cation will precipitate after the________ step.
Novay_Z [31]

Answer:

f. Sn^4+

c. second

e. Al^3+

d. third

Explanation:

This question comes from a quantitative analysis showing the flowchart of a common scheme for identifying cations.

Now, from the separation scheme, Let's assume that Sn⁴⁺ & Al³⁺ were given; Then, Yes, the separation will work.

However, there will be occurrence of precipitation after the 1st step1.

So,  the <u>Sn⁴⁺</u> cation will precipitate after the <u>second </u>step. Then the <u>Al³⁺</u> cation will precipitate after the <u>third</u> step.

8 0
2 years ago
Compared to ultraviolet light, an electromagnetic wave that has a higher frequency will also have ________.
Nikitich [7]
  • The answer is shorter wavelength and equal speed.                        

That is, compared to ultraviolet light, an electromagnetic wave that has a higher frequency will also have shorter wavelength and equal speed.

This can be seen by the reaction given below:

 h\times \upsilon =\frac{c}{\lambda }

h= Planck's constant

c=speed of the light

 \upsilon=frquency

{\lambda }=wavelength

So, higher is the frequency, lesser is the volume while speed remains constant as c is speed of light.

6 0
3 years ago
Read 2 more answers
I NEED HELP ON THIS WORTH 20 POINTS :)
Arturiano [62]

Answer: C. mollusca and arthropoda

                                                                           

Explanation:

4 0
2 years ago
Read 2 more answers
Which of the following is not a benefit of the water cycle?
BigorU [14]

Answer:

4th line

Explanation:

-water cycle helps regulate the temperature on the Earth.

8 0
3 years ago
Read 2 more answers
HELP ASAP!!!!!!
harina [27]

that seems very false but I believe its the second one

7 0
3 years ago
Read 2 more answers
Other questions:
  • Basic atomic structure of argon​
    15·1 answer
  • Given the information that nitrogen atoms are larger than hydrogen atoms,which of the models best represent ammonia?(NH3)
    10·1 answer
  • __________ are composed of two or more covalently bonded atoms.
    12·2 answers
  • Mammals use their lungs to provide oxygen for themselves from the air. Fish spend a majority of their time in the water, and ins
    8·2 answers
  • When the following molecular equation is balanced using the smallest possible integer coefficients, the values of these coeffici
    14·1 answer
  • Spell out the full name of the compounds<br> Help plz
    14·1 answer
  • An object resting on top of a building has the most potential energy ....
    8·2 answers
  • 1 mole of water, 3 moles of methanol and 5 moles of ethanol are mixed together. What is the mole fraction of methanol
    15·1 answer
  • When 84. 8 g of iron (III) oxide reacts with an excess of carbon
    13·1 answer
  • What makes a glass different from a solid such as quartz? Under what conditions could quartz be converted into glass?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!