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
Roman55 [17]
2 years ago
13

How many aluminum atoms are there in 3.50 grams of al2o3?

SAT
1 answer:
kifflom [539]2 years ago
3 0

Answer:

4.13×10^22 atoms

Explanation:

1. Find number of moles

mole=mass/rmm of compound

mole= 3.50/102

mole= 7/204 mol

2. Multiply it with avagadros constant( 6.02×10^23 particles)

7/204 × 6.02×10^23= 2.0657×10^22

3. Multiply it with the number of ALMINIUM ATOMS IN AL203( which is 2 atoms)

2.0657×10^22 × 2

you get 4.13×10^22 atoms

You might be interested in
There is a CHUBBY dog,a skinny dog, and a regular dog. which one doesn't skip a meal?
Len [333]

of course the  skinny dog and regular dog and CHUBBY dog don't skip meals

7 0
3 years ago
Who would win? Kung Fu Panda or Beyonce??<br> I will pick a brainlist
fredd [130]
Master Po will win right?
6 0
3 years ago
Look at this picture. Imagine you are an archeologist who has been searching for ancient artifacts through the caves in france,
Zarrin [17]

Answer:

The cave painting on the image is representing the animals, or rather the environment that was seen by the artists of the painting in their surroundings. We can see that there are wild horses depicted on it, but also a rhino. The wild horses were probably a prey animal, while the rhino was a respected animal and feared one, thus they were avoiding it. The artists that painted it were the Cro-Magnons, early Homo-sapiens in Europe, in what is now France. The reason why it was painted is probably because the artist wanted to depict the environment, but also maybe for teaching the youngsters about the animals from early age, so that they know which ones are to be hunted, and which ones to be avoided.

4 0
2 years ago
If a person takes 30 ml of vinegar a day and the molarity of the vinegar is 0. 84 m then how many grams of acetic acid (hc2h3o2
babunello [35]

The mass of the acetic acid is 1.512 g.

<h3 /><h3>What is Molarity?</h3>

molarity is the concentration of a substance in mol per dm³

From the question,

The number of moles contained in the 30 mL vinegar is

  • n = (0.84×30)/1000
  • n = 0.0252 mol.

the molar mass of vinegar is calculated below.

  • m.m of (HC₂H₃O₂) = [1+(12×2)+(1×3)+(16×2)]
  • m.m = (1+24+3+32]
  • m.m = 60 g/mol.

To calculate the mass of acetic acid, we use the formula below.

  • R.m = n×m.m............. Equation 1

Where

  • R.m = mass of acetic acid.

Substitute these values into equation 1

  • R.m = (0.0252×60)
  • R.m = 1.512 g.

Hence, The mass of the acetic acid is 1.512 g.

Learn more about molarity here: brainly.com/question/20383725

8 0
3 years ago
Need help right now please thank you
Elza [17]

Answer:

29 %

Explanation:

check the table for given condition and divide by total no of students

5 0
3 years ago
Other questions:
  • High interest rates on savings accounts encourage people to ___.
    14·2 answers
  • Where would an air mass thunderstorm most likly occur
    10·1 answer
  • How many questions are on the science aspire test<br>A: 40<br>B: 75<br>C: 60<br>D: 20
    9·1 answer
  • Which of the following is an example of an employee who is able to effectively contribute in the work place?
    8·1 answer
  • Describe protons.<br> Location: <br> Charge: <br> Mass:
    11·2 answers
  • In addition to being a religious symbol, the statue David also _______________________. a. served as a reminder of Florence’s re
    8·1 answer
  • A car slows from 22 m/s to 3. 0 m/s at a constant rate of 2. 1 m/s2. How many seconds are required before the car is traveling a
    14·1 answer
  • What value of m gives the system infinitely many solutions? –x + 2y = 16 y = mx + 8.
    10·1 answer
  • Keeping in mind the symbolism in this passage, what is the best interpretation of caesar’s attitude about his possible death? hi
    13·2 answers
  • At some point during the babbling stage, babies begin t
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!