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
8

How many moles are in 2.6 x 10 ^25 atoms of Li?​

Chemistry
1 answer:
Cerrena [4.2K]3 years ago
5 0

Answer:

43 mole

Explanation:

Given data:

Number of atoms of Li = 2.6× 10²⁵ atoms

Number of moles = ?

Solution:

The given problem will solve by using Avogadro number.

It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.  The number 6.022 × 10²³ is called Avogadro number.

1 mole = 6.022 × 10²³ atoms

2.6× 10²⁵ atoms × 1 mole / 6.022 × 10²³ atoms

0.43 × 10² mole

43 mole

You might be interested in
At archery practice, Vladimir tests a bow and arrow he has recently designed. He is able to accelerate a 24.0-g arrow at an aver
Whitepunk [10]

Answer: A

1.68 N

Explanation:

F = ma = 0.024(70.0) = 1.68 N

7 0
3 years ago
Which substance is a binary acid?
Gelneren [198K]
The answer is going to be hydrochloric acid, therefore hydrochloric acid is a binary acid.
8 0
3 years ago
Read 2 more answers
That's just the tip of the iceberg" is a popular expression you may have heard. It means that what you can see is only a small p
puteri [66]
Answer:

B 1.23 g/cc

Explanation:
For something to float on seawater, the density must be less than 1.03 g/mL. If the object sinks, the density is greater than 1.03 g/mL.

Let’s examine the answer choices. Keep in mind, the ice berg is mostly below the water level.

A. 0.88 g/cc
This is less than 1.03 g/cc, which would result in floating.

B. 1.23 g/cc
This is the best answer choice. The iceberg is mostly beneath the water, but some of it is exposed. The density is greater than 1.03 g/mL, but not so much greater that it would immediately sink.

C. 0.23 g/cc
This is less than 1.03 g/cc, which would produce floating.

D. 4.14 g/cc
This is much greater than 1.03 g/cc and the result would be sinking.
5 0
3 years ago
What is the stoichiometric ratio between BaCl2 and NaCl
bixtya [17]
<span>BaCl2+Na2SO4---->BaSO4+2NaCl There is 1.0g of BaCl2 and 1.0g of Na2SO4, which is the limiting reagent? "First convert grams into moles" 1.0g BaCl2 * (1 mol BaCl2 / 208.2g BaCl2) = 4.8 x 10^-3 mol BaCl2 1.0g Na2SO4 * (1 mol Na2SO4 / 142.04g Na2SO4) = 7.0 x 10^-3 mol Na2SO4 (7.0 x 10^-3 mol Na2SO4 / 4.8 x 10^-3 mol BaCl2 ) = 1.5 mol Na2SO4 / mol BaCl2 "From this ratio compare it to the equation, BaCl2+Na2SO4---->BaSO4+2NaCl" The equation shows that for every mol of BaCl2 requires 1 mol of Na2SO4. But we found that there is 1.5 mol of Na2SO4 per mol of BaCl2. Therefore, BaCl2 is the limiting reagent.</span>
7 0
3 years ago
If matter has a definite volume but no definite shape, in what state is it?
Andre45 [30]
Yes a liquid is the state of matter
8 0
3 years ago
Read 2 more answers
Other questions:
  • Which formed first: hydrogen nuclei or hydrogen atoms?
    15·1 answer
  • Explain how you would use the IR spectra to characterize ferrocene, acetyl ferrocene and diacetyl ferrocene.
    10·1 answer
  • How many zn atoms are contained in 922 g of zn
    14·1 answer
  • What is the abreviation for carbon dioxide??
    13·1 answer
  • 10. When the pressure on a gas inetcases three times, by how much will the volume incrcase or decrease?
    14·1 answer
  • A block of ice has little thermal energy. If you place it in a warm room, it melts into warm liquid water, which has much more e
    7·1 answer
  • An atomic scientist was studying an atom and through experimentation found that the total negative charge of the area surroundin
    12·1 answer
  • DNA<br> What organism is often used to study mutations
    11·1 answer
  • The reader can infer from the article that __________.
    11·1 answer
  • Elements that are usually dull, brittle and do not conduct electricity are know as______.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!