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
Gnesinka [82]
2 years ago
8

please hurry! If 3.87g of powdered aluminum oxide is placed in a container containing 5.67g of water, what is the limiting react

ant?
Chemistry
1 answer:
VikaD [51]2 years ago
6 0

Answer:

Explanation:

Given parameters:

Mass of aluminium oxide = 3.87g

Mass of water = 5.67g

Unknown:

Limiting reactant = ?

Solution:

The limiting reactant is the reactant in short supply in a chemical reaction. We need to first write the chemical equation and convert the masses given to the number of moles.

Using the number of moles, we can ascertain the limiting reactants;

         Al₂O₃  + 3H₂O  →  2Al(OH)₃  

Number of moles;

            Number of moles = \frac{mass}{molar mass}

molar mass of Al₂O₃  = (2x27) + 3(16) = 102g/mole

    number of moles = \frac{3.87}{102}  = 0.04mole

   

molar mass of  H₂O = 2(1) + 16 = 18g/mole

    number of moles = \frac{5.67}{18}  = 0.32mole

From the reaction equation;

        1 mole of  Al₂O₃  reacted with 3 moles of H₂O

   0.04 mole of Al₂O₃ will react with 3 x 0.04 mole = 0.12 mole of H₂O

But we were given 0.32 mole of H₂O and this is in excess of amount required.

This shows that Al₂O₃ is the limiting reactant

           

You might be interested in
When the following reaction reached equilibrium at 325 K , the equilibrium constant was found to be 172. When a sample was taken
miss Akunina [59]

Answer: 6.88M

Explanation:

K= [N204]/[NO2]^2

[NO2]= 0.2M

K=172

[N204]=K * [N02]^2

172 *0.2^2

=6.88M

6 0
3 years ago
7.The _____ theory of matter states that all particles of matter are in constant motion.
SashulF [63]
The kinetic energy theory of matter states that all particles of matter are in constant motion.
Kinetics has to do with some kind of movement, which is why this answer is the only plausible one. 
6 0
3 years ago
Read 2 more answers
4. Which of the following statements accurately compares the wavelengths of the waves shown below?
wlad13 [49]

Answer:

B. wave 1 has a larger wavelength than wave 2

5 0
2 years ago
List three properties of metal that nonmetals typically DO NOT have
finlep [7]
-They can conduct heat
-They can conduct electricity
-They are typically stronger than non metals
Hope this helps, have a nice day! :)
7 0
2 years ago
Read 2 more answers
1. Do you think that the lightbulb and the Moon spheres are "to scale" compared to the real
Tems11 [23]

Answer:

Yes

Explanation: Had a question like this and I said yes and got it right

3 0
2 years ago
Other questions:
  • How many atom of cd are in 3.00g of cadmium
    8·2 answers
  • What does continental drift and sea floor spreading have in common
    8·1 answer
  • Will mark brainliest! Topic is redox reactions, please follow the insturctions given above to help
    10·1 answer
  • Write your answer with correct significant figures (*no scientific notation): 847.3219 x 34.6 x 1.4560 =​
    5·1 answer
  • If an atom has 7 valence electrons, what will its charge be when it becomes an ion?
    9·1 answer
  • All mutations _____.
    6·1 answer
  • What would happen to our solar system if the Sun had an even greater mass than it currently does?
    9·1 answer
  • A substance which is made up of the same kind<br> of atom is known as?
    10·1 answer
  • Physical or Chemical change?
    13·1 answer
  • This graph compares the amounts of three different substances that can dissolve in 100 g of water at temperatures between 0° C a
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!