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
Tanzania [10]
2 years ago
6

g The theoretical yield of a certain reaction is 123 g of Al2O3. If the actual yield when the experiment is performed is 0.209 m

ol Al2O3, what is the percent yield
Chemistry
1 answer:
liberstina [14]2 years ago
5 0

Answer:

Percent yield = 17.3%

Explanation:

The percent yield is defined as 100 times the ratio between actual yield in grams and theoretical yield in grams (123g).

Percent Yield = Actual Yield / Theoretical yield (123g) * 100

To find actual yield we need to convert the 0.209moles to grams:

<em>Actual yield -Molar mass Al2O3: 101.96g/mol-</em>

0.209mol * (101.96g/mol) = 21.3g

Percent yield = 21.3g / 123g * 100

Percent yield = 17.3%

You might be interested in
A topographical map would be useful for which activity? A. planning a hiking trip B. studying plant growth over time C. studying
amm1812
The answer is A. planning a hiking trip

A topographical map would not help studying plant growth over time unless you are looking for a better altitude to plant said plants.

A topographical map would not help studying rainfall for one year unless your location was <em>really</em> so high or low that it affected your weather

And most of all, a topographical map would not be useful for planning a cuise across the Atlantic Ocean because the elevation of the sea is zero!

A topographical map <em>would</em> be useful for planning a hiking trip because there are many factors and details that a hike should have. Which includes height, distance, paths, and elevation.
5 0
3 years ago
What do you think could be happening to the sand eels​
Alex777 [14]

Answer:

is there like a passage to answer this question?

Explanation:

7 0
3 years ago
Read 2 more answers
The measured value 24.00 g has an uncertainty of?
Orlov [11]

Answer:

±0.005 g

Explanation:

The uncertainty depends on whether the measurement was obtained manually or digitally.

1. Manual

The minimum uncertainty is ±0.01 g.

It may be greater, depending on random or personal errors

2. Digital

Most measurements of mass are now made on digital scales.

A digital device must always round off the measurement it displays.

For example, if the display reads 20.00, the measurement must be between 20.005 and 19.995 (±0.005).

If the measured value were 20.006, the display would round up to 20.01.

If the measured value were 19.994, the display would round down to 19.99.

The uncertainty is ±0.005 g.

The scale shown below would display a mass of 20.00 g

6 0
3 years ago
An ecosystem is a geographical area......
GrogVix [38]
The right answer for the question that is being asked and shown above is that: "where plants, animals, the landscape and the climate are all independent of each other." An ecosystem is a geographical area <span>where plants, animals, the landscape and the climate are all independent of each other.</span>
4 0
3 years ago
Mixed Practice:
AveGali [126]

Given

Mass of NO - 824 g

Molar mass of NO - 30.01g/mol

No of moles of NO = Given mass/Molar mass

No of moles of NO = 824/30.01= 27.45 mole

Hence 27.5 moles of NO are formed!

4 0
2 years ago
Other questions:
  • Please explain how we judge the brightness of stars.
    11·1 answer
  • The ka values for several weak acids are given below. which acid (and its conjugate base) would be the best buffer at ph = 8.0?
    10·2 answers
  • Why is it not correct/precise to say "a molecule of salt?"
    7·1 answer
  • What is one possible molecular structure of polypropylene?
    9·1 answer
  • How many is 10+24x+39x=3
    8·1 answer
  • Eşit kütlede ve özdeş kaplarda bulunan Alkol ve Suyun buhar basınçlarını eşitlemek için ne yapmalıyız?
    11·1 answer
  • A net force of 66 newtons accelerates a child at 2.0 m/s? down a smooth playground slide. What is the mass of the
    9·2 answers
  • Which elements from the list would be likely to form an ionic bond with chlorine, Cl?
    6·1 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
  • Which would most easily form negative one ions.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!