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
Iteru [2.4K]
2 years ago
11

A chemical reaction that is expected to form 325.0 gof product only forms 123.8 g of product. What is the percent yield of this

reaction?
38.1%
61.9%
201.2%
262.5%
Chemistry
2 answers:
iren2701 [21]2 years ago
7 0

Answer:

38.1%

Explanation:

Tasya [4]2 years ago
5 0

Answer:

\boxed {\boxed {\sf A. \ 38.1 \%}}

Explanation:

Percent yield is the ratio of the amount actually produced to how much could theoretically be produced. It is found using this formula:

\% \ yield = \frac{actual \ yield}{theoretical \ yield} *100

For this reaction, the theoretical or expected yield is 325.0 grams. The actual yield is 123.8 grams.

\% \ yield = \frac{ 123.8 \ g }{325.0 \ g }*100

Divide.

\% \ yield = 0.380923077 *100

\% \ yield = 38.0923077

Round to the nearest hundredth. The 9 in the hundredth place tells us to round the 0 to a 1 .

\% \ yield \approx 38.1

The percent yield is about <u>38.1%</u>

You might be interested in
5. Hydrogen &amp; oxygen react chemically to form water. How much water
stepladder [879]

39.25 g of water (H₂O)

Explanation:

We have the following chemical reaction:

2 H₂ + O₂ → 2 H₂O

Now we calculate the number of moles of each reactant:

number of moles = mass / molar weight

number of moles of H₂ = 14.8 / 2 = 7.4 moles

number of moles of O₂ = 34.8 / 32 = 1.09 moles

We see from the chemical reaction that 2 moles of H₂ will react with 1 mole of O₂ so 7.4 moles of H₂ will react with 3.7 moles of O₂ but we only have 1.09 moles of O₂ available. The O₂ will be the limiting reactant. Knowing this we devise the following reasoning:

if        1 moles of O₂ produces 2 moles of H₂O

then  1.09 moles of O₂ produces X moles of H₂O

X = (1.09 × 2) / 1 = 2.18 moles of H₂O

mass = number of moles × molar weight

mass of H₂O = 2.18 × 18 = 39.25 g

Learn more about:

limiting reactant

brainly.com/question/7144022

brainly.com/question/6820284

#learnwithBrainly

6 0
3 years ago
If you have a pitcher of lemonade and the recipe calls for 2 lemons and you decided to use 4, would this be considered diluted o
pantera1 [17]

Answer: This would be considered concentrated because if you're upping the recipe on your own accord, it would be way more sour, causing the lemonade to be more concentrated. It would be diluted if you added less than 2 lemons.

7 0
3 years ago
What do you call a bond that forms when electrons are transferred from one atom to another?
AlekseyPX
It is called an ionic bond
4 0
3 years ago
Listening to music on your headphones converts what energy to what energy
zysi [14]

I think it converts electrical energy to sound energy because, say if you're listening to music on your phone but, with the speaker on. The speaker of the phone on the other end changes the electrical energy/ electromagnetic waves back into sound energy. I believe the same goes with headphones

6 0
3 years ago
Can anyone help me? thank you :))
Alex_Xolod [135]
8. 63360
9. 1000
if I got anything wrong please let me know thank you :)
6 0
2 years ago
Other questions:
  • Which statements are true? The oxidation number for Cu(s) is +2. An oxidizing agent gains electrons. Na+ is formed from the redu
    10·2 answers
  • Please HELPPPPP ME ASAP!​
    10·1 answer
  • Digesting a candy bar is a physical change or chemical change? why?​
    11·2 answers
  • Which of the following solutes has the greatest effect on the colligative properties for a given mass of pure water? Explain.
    8·1 answer
  • A scientist develops a new experiment to test atomic theory. His results do not agree with the theory.
    11·1 answer
  • ) What mass of potassium nitrate would be needed to
    12·1 answer
  • Rising magma pushes on the crust above it, which can cause ground
    12·1 answer
  • 134 miles= ? inches. Chemistry
    8·2 answers
  • What class of chemicals is responsible for ozone depletion?
    7·1 answer
  • What is oxidized and what is reduced <br> C2H4 + 2O2 → 2CO + 2H2O<br> C2H4 + 3O2 → 2CO2 + 2H2O
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!