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
6

Determine % yield if a student obtains 45 g of product in an experiment and the theoretical amount is determined to be 50 g

Chemistry
1 answer:
Katen [24]3 years ago
8 0
Percentage yield=(actual yield/theoretical yield) x 100%
= (45/50) x 100%
= 90%
You might be interested in
If you burn 28.2g of hydrogen and produce 252g of water, how much oxygen reacted
andrey2020 [161]
15% oxygen is reacted
6 0
3 years ago
Why is the anatomy of the human body not a general reason to study chemistry. Need help for a good reply.
ivolga24 [154]
Anatomy's a biology topic!
8 0
3 years ago
Answer the ones please get right
Natali [406]

Answer:

Hope this helps!

Explanation:

I would help you, but I won't. Because you take others people points without helping them and but random words. So, since you are doing that I won't be helping you <3. Thanks for the points idiot.

6 0
3 years ago
When methanol, CH 3 OH , is burned in the presence of oxygen gas, O 2 , a large amount of heat energy is released. For this reas
luda_lava [24]

<u>Answer:</u> The mass of methanol that must be burned is 24.34 grams

<u>Explanation:</u>

We are given:

Amount of heat produced = 581 kJ

For the given chemical equation:

CH_3OH(g)+\frac{3}{2}O_2(g)\rightarrow CO_2(g)+2H_2O(l);\Delta H=-764kJ

By Stoichiometry of the reaction:

When 764 kJ of heat is produced, the amount of methanol reacted is 1 mole

So, when 581 kJ of heat will be produced, the amount of methanol reacted will be = \frac{1}{764}\times 581=0.7605mol

To calculate mass for given number of moles, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}

Moles of methanol = 0.7605 moles

Molar mass of methanol = 32 g/mol

Putting values in above equation, we get:

0.7605mol=\frac{\text{Mass of methanol}}{32g/mol}\\\\\text{Mass of methanol}=(0.7605mol\times 32g/mol)=24.34g

Hence, the mass of methanol that must be burned is 24.34 grams

4 0
3 years ago
In December, a city in the Southern Hemisphere has warm weather all month long. What causes this to happen?
dsp73

Answer:

D

Explanation:

just took test

6 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following chemical symbols represents the element silver?
    8·2 answers
  • Which process moves molecules and has these traits?
    11·2 answers
  • What is the charge of Fe2O3
    7·1 answer
  • Which scientist provided a foundation for john daltons work on the atomic structure
    12·1 answer
  • Calculate the density of helium if a balloon with a capacity of 5.00 L holds 0.890 g.
    6·1 answer
  • What is the acknowledgment to ''Do all liquids evaporate at the same rate?'
    5·1 answer
  • If DNA were straight it would be
    13·2 answers
  • In substitution reactions, (CH3)3C-I reacts at the same rate with Br- and Cl- even though Br- is a more reactive nucleophile tha
    11·1 answer
  • How many electrons are there in 2 g of H2
    10·1 answer
  • Pls help 10 points<br> Plsplsplspslspslspslsspsls
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!