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
rjkz [21]
3 years ago
5

How many grams of aluminum oxide (Al2O3) will be formed from 10.0 grams of aluminum (Al)? 4 AL + 3 02 --> 2 AL203​

Chemistry
1 answer:
d1i1m1o1n [39]3 years ago
4 0

Answer:

Mass = 18.9 g

Explanation:

Given data:

Mass of Al₂O₃ formed = ?

Mass of Al = 10.0 g

Solution:

Chemical equation:

4Al + 3O₂      →       2Al₂O₃

Number of moles of Al:

Number of moles = mass/molar mass

Number of moles = 10.0 g/ 27 g/mol

Number of moles = 0.37 mol

Now we will compare the moles of Al and Al₂O₃.

                      Al          :          Al₂O₃

                       4           :            2

                     0.37        :         2/4×0.37 = 0.185 mol

Mass of Al₂O₃:

Mass = number of moles × molar mass

Mass = 0.185 mol × 101.9 g/mol

Mass = 18.9 g

You might be interested in
If the frequency of a wave is 68 hertz then the period of the wave is going to be
tigry1 [53]
The answer is 4.41x10^1 m.

Explanation:

You would use this formula to calculate it
λ = C/f

Where,

λ (Lambda) = Wavelength in meters

c = Speed of Light (299,792,458 m/s)

f = Frequency

So we have the frequency, 68 Hz, and we have the speed of light. Now we put it into the equation and it will look like this:


λ= (299,792,458 m/s) / (68 Hz)

λ= 4.41x10^1


6 0
3 years ago
Read 2 more answers
determine the percent yield for the reaction between 14.9g NH3 and excess oxygen to produce 18g of NO gas
emmainna [20.7K]

Answer:

I don't know really i am sorry

6 0
3 years ago
What is the name of this molecule ?
myrzilka [38]
I think its chlorine Im not positive but im 99.9 precent shure

4 0
3 years ago
What is the molarity of a solution prepared by dissolving 54.3 g of Calcium nitrate
Ostrovityanka [42]

Answer: 40 + 2x14 + 6x16 = 164g/mole

54.3g x [1mole / 164g] = 0.331moles

355mL x 1L / 1000mL = 0.355L

molarity = 0.331moles / 0.355L =

00

Explanation:

5 0
3 years ago
Which of the following solutions would have the lowest freezing point?
Paul [167]

B. 3.0 mol·L⁻¹ NaCl

Explanation:

Freezing point is a colligative property: it depends only on the number of particles in solution.

The for freezing point depression ΔT_f is

ΔT_f = iK_fb

where

i = the number of moles of particles available from one mole of solute

K_f = the molal freezing point depression constant

b = the molal concentration of the solute

All your solutions are aqueous NaCl. They differ only in their concentrations.

Thus, the most concentrated solution will have the greatest freezing point depression and the lowest freezing point.

Read more on Brainly.com - brainly.com/question/11516173#readmore

4 0
3 years ago
Other questions:
  • During the process of _____, gas loses heat and changes into a liquid.
    11·2 answers
  • This happens in massive star which convert hydrogen into helium? ​
    6·1 answer
  • Which of the following human activities can increase the risks of flooding?
    10·2 answers
  • Which is/are part of the macroscopic domain of solutions and which is/are part of the microscopic domain: boiling point elevatio
    15·1 answer
  • 1. What are the sources of water on Earth?
    13·2 answers
  • A gas occupies 4.65 liters at 0.86 atm. What is the pressure if the volume becomes 15.27 L?
    15·1 answer
  • Which phrase describes a feature of an earthquake’s epicenter?
    5·2 answers
  • HELP ME PLEASE!!!
    9·1 answer
  • Who discovered electrons
    7·2 answers
  • List the sequence of events that occurred in the area represented by the profile above.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!