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
artcher [175]
3 years ago
15

A sample of aluminum foil contains 7.90 x 10^23 atoms. What is the mass of the foil?

Chemistry
1 answer:
Zanzabum3 years ago
4 0

Answer:

35.3 g

Explanation:

Step 1: Given data

Number of atoms of aluminum: 7.90 × 10²³ atoms

Step 2: Calculate the number of moles corresponding to 7.90 × 10²³ atoms of aluminum

We will use Avogadro's number: there are 6.02 × 10²³ atoms of aluminum in 1 mole of atoms of aluminum.

7.90 × 10²³ atoms × (1 mol/6.02 × 10²³ atoms) = 1.31 mol

Step 3: Calculate the mass corresponding to 1.31 moles of aluminum

The molar mass of Al is 26.98 g/mol.

1.31 mol × 26.98 g/mol = 35.3 g

You might be interested in
Can some one please help me <br><br> First person to answer me wins 75 points
MaRussiya [10]

Answer: it b  

Explanation:

6 0
3 years ago
The density of water is 1.0gcm3 at 4∘C. What is the mass of 15mL of water at this temperature?
muminat

Answer:

15 gram

Explanation:

in one liter

=1000ml = 1000 cm3

so 15 ml = 15 cm3

15 cm3 = 15 gram

6 0
3 years ago
Why does determining volume work only for a regular shaped object
Kitty [74]

Answer:

Because only regular-shaped objects have a consistent length, width, height, and shape.

Explanation:

Because only regular-shaped objects have a consistent length, width, height, and shape. When dealing with an object composed of differing shapes, your must calculate each portion separately and then add them.

5 0
2 years ago
Explain the difference between percent abundance and relative abundance.
larisa86 [58]
<span>Relative abundance - comparison between the isotopes Percent abundance -
</span><span>comparing the totals.
</span>relative abundance:the number of organisms of a particular kind as a percentage of the total number of organisms of a given area or community; the number of birds of a particular species as a percentage of the total bird population of a given area percent:figured or expressed on the basis of a rate or proportion per hundred (used in combination with a number in expressing rates of interest, <span>proportions, etc.</span><span>

</span>
<span> 
</span>

8 0
2 years ago
plants use energy from the sun in the process of photosynthesis to manufacture glucose what form of energy is that?
timurjin [86]
Solar, or <span>radiant to chemical.</span>
5 0
3 years ago
Other questions:
  • What are five key accomplishments of Marie Curie?
    9·1 answer
  • What information did the scientists miss in 1948 and 1966 that caused them to
    8·1 answer
  • On which of the following factors does the amount of energy absorbed by an endothermic reaction depend?
    15·2 answers
  • While exploring on your grandfathers farm, you find a layer of charcoal that might represent a campfire built by Native American
    10·1 answer
  • What is a compound?
    5·2 answers
  • How may mrna be modified before it leaves the nucleus?
    9·1 answer
  • #3. How does a fever aid an immune response?
    13·2 answers
  • HELP WILL GIVE BRAINLIEST NO WEIRD ANSWERS PLSS
    7·2 answers
  • Determine the maximum amount of NaNO3 that was produced during the experiment. Explain how you determine this amount.
    5·2 answers
  • Becquerel placed photographic paper in a drawer with some radioactive rocks and discovered that the amount of exposure on the pa
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!