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
Lunna [17]
2 years ago
6

Given the reaction: 4A1 + 302 - 2A1,O, How many grams of Al will be

Chemistry
1 answer:
dlinn [17]2 years ago
4 0

Answer:

The answer to your question is 27 g of Al

Explanation:

Data

mass of Al = ?

moles of Al₂O₃ = 0.5

The correct formula for the product is Al₂O₃

Balanced chemical reaction

               4Al + 3O₂   ⇒   2Al₂O₃

Process

1.- Calculate the molar mass of the product

Al₂O₃ = (27 x 2) + (16 x 3)

         = 54 + 48

         = 102 g

2.- Convert the moles of Al₂O₃ to grams

               102 g ---------------- 1 mol

                 x       ----------------  0.5 moles

                 x = (0.5 x 102) / 1

                 x = 51 g of Al₂O₃

3.- Use proportions to calculate the mass of Al

                4(27) g of Al --------------- 2(102) g of Al₂O₃

                     x               --------------- 51 g

                        x = (51 x 4(27)) / 2(102)

                        x = 5508 / 204

                        x = 27 g of Al

You might be interested in
The km of an enzyme is 5. 0 mm. Calculate the substrate concentration when this enzyme operates at one‑quarter of its maximum ra
Makovka662 [10]

The substrate concentration of the enzyme operating at one‑quarter of its maximum rate is = 0.333.

Relationship between Km and substrate concentration is -

Km is the concentration of substrate.It allows the enzyme to achieve half Vmax. High Km enzyme requires a higher concentration of substrate to get Vmax. Since, Km is a constant. If the substrate concentration is increased, it has no effect on it.

An enzyme with a high Km has a low affinity for its substrate. The substrate concentration Km corresponds to the substrate concentration.

The substrate concentration at which the reaction rate of the enzyme-catalyzed reaction is half of the maximum reaction rate Vmax.

The equation is:

                <em>V₀ = </em><u><em>Vmax [S] </em></u>

<em>                          [S] + Km</em>

Here,

V₀ is initial rate,

Km is the dissociation constant between the substrate and the enzyme,

Vmax is the maximum rate, and

S is the concentration of substrate.

taking fraction of V₀ and Vmax :

<u><em>    V₀    </em></u><em> = </em><u><em>     [S</em></u><em>]</em><u><em>     </em></u><em>  </em>

<em>Vmax      [S] + Km</em>

<u><em>   </em></u><u>V₀   </u> =   <u>   0.5Km   </u>  = 0.333

Vmax       1.50 + Km

Therefore, the substrate concentration of this enzyme operating at one‑quarter of its maximum rate is = 0.333.

To learn more about substrate concentration,

brainly.com/question/18237939

#SPJ4

3 0
11 months ago
Which type of reaction always has an element and a compound as reactants?
ladessa [460]

Answer:

B. single-replacement

Explanation:

8 0
3 years ago
Read 2 more answers
A heavy textbook and a QOD journal sit on the edge of your desk. Which has more gravitational potential energy?
fenix001 [56]
The textbook Would most likely have more gravitational potential energy because it is heavier. Things that are heavier have a larger gravitational pull and are pulled to the earth faster
4 0
3 years ago
What type of chemical reaction is given by the following balanced equation:<br> Al₂O3 → AL+ O₂
rjkz [21]

Answer:

Decomposition

Explanation:

3 0
3 years ago
What is the atomic mass of<br> an atom?
Alborosie

Answer:

1 unit

Explanation:

It is expressed as a multiple of one-twelfth the mass of the carbon-12 atom, 1.992646547 × 10−23 gram, which is assigned an atomic mass of 12 units.

1/12 * 12 = 1. I think so.

4 0
3 years ago
Other questions:
  • What are the two roles that the pancreas plays?
    14·2 answers
  • A sample of solid NH 4HS is placed in a closed vessel and allowed to equilibrate. Calculate the equilibrium partial pressure (at
    10·1 answer
  • Moseley's main contribution to the development of the modern periodic table was which of the following? atomic mass should be th
    5·1 answer
  • What are the properties of the aluminum in the can? Check all that apply.
    7·1 answer
  • Predict the formulas for calcium chloride and potassium phosphate
    15·1 answer
  • Which step is this ?prophase I, Anaphase I, prophase II, Anaphase II
    7·2 answers
  • 1. If 2 moles of hydrogen combine with one mole of oxygen, how many moles of water are<br> produced?
    13·1 answer
  • Two disadvantages to deforestation
    6·2 answers
  • Why is sodium chloride not considered a molecular compound? What kind of compound is it?
    14·1 answer
  • how power station that produce electricity affect our environment what can we do to minimize these harmful effects?​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!