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
Liono4ka [1.6K]
3 years ago
14

How many moles of pbr3 contain 3.68 × 1025 bromine atoms?

Chemistry
1 answer:
Tcecarenko [31]3 years ago
6 0
The number  of Pbr3  that   contain   3.68  x10^ 25  bromine  atoms is  60.631  moles


      calculation

by  use of Avogadro  law constant 
that is,   1  moles =  6.02  x10^23   atoms

what   about  3.65  x10^25  atoms

by   cross  multiplication

= (1 mole  x 3.65 x  10 ^25  atoms)  /  ( 6.02  x10^23  atoms)  = 60.631  moles
atoms and  atoms  cancel  out  each  other
You might be interested in
Which of the elements shown will not form ions, and why will they not do so?
grigory [225]

No elements visible!

Ions form between metals and non-metals.

Hope this helps!

6 0
2 years ago
Based on the solubility observations, which of the following pairs of cations could be distinguished by the addition of sodium c
Licemer1 [7]

Based on the solubility observations, barium & aluminum could be distinguished by the addition of sodium chloride to the solutions.

<h3>What happens when NaCl is added to a solution?</h3>
  • The ionic link that held sodium and chloride ions together is broken when water molecules force the ions apart.
  • The sodium and chloride atoms are encircled by water molecules after the salt compounds are separated. After that, the salt dissolves and forms a homogenous solution.
  • In order to keep patients from dehydrating, sodium chloride, an important nutrient, is employed in healthcare. It is employed as a spice to improve flavor and as a food preservative. Additionally, sodium chloride is employed in the production of polymers and other goods. Additionally, it is used to de-ice sidewalks and roadways.
  • Adding water to sodium chloride results in a physical change because no new product is created.

Learn more about sodium chloride added to a solution refer to :

brainly.com/question/28092739

#SPJ4

7 0
1 year ago
What is the density of a block of marble that occupies 277 cm3 and has a mass of 928 g? Answer in units of g/cm3 .
Evgesh-ka [11]
V=277cm^{3}\\&#10;m=928g\\\\&#10;d=\frac{m}{V}=\frac{928g}{277cm^{3}}\approx3,35\frac{g}{cm^{3}}
8 0
3 years ago
Formula of <br> Al³⁺ and SO₄²⁻
Sergio039 [100]

Answer:

The formula of Al³⁺ and SO₄²⁻ is aluminum sulfate.

Explanation:

The formula for aluminum sulfate is Al₂(SO₄)₃. If we say in terms of ions. The ions are Al³⁺. It is a positive ion or the cation. Other ion is SO₄²⁻. It is sulfate ion. It is anion.

Aluminum sulphate is used in water purification and as a mordant in dyeing and printing textiles.

Hence, the formula of Al³⁺ and SO₄²⁻ is aluminum sulfate.

3 0
3 years ago
Which statements correctly describe characteristics of cells? Check all that apply. A. Animal cells are all generally circular i
Gnoma [55]

Answer:

A. Correct

B. Wrong

C. Wrong.

D. Correct.

E. Correct.

Explanation:

8 0
3 years ago
Other questions:
  • When the coffee is brewed according to directions, a pound of coffee beans yields 50 cups of coffee (4 cups = 1 quart). How many
    9·1 answer
  • Ordena de mayor a menor según sus radios iónicos a los siguientes iones:
    11·1 answer
  • A 3.00 L flexible container holds a sample of hydrogen gas at 153 kPa. If the pressure increases to 203 kPa and the temperature
    14·1 answer
  • Researchers have developed cars which navigate and steer themselves. Aside from cost, what is most likely the main factor keepin
    13·2 answers
  • Which 2 characteristics must and object have in order to be considered matter?
    6·1 answer
  • What are the chemical symbols for the elements calcium carbon and chlorine respectivly
    14·1 answer
  • Write the structure of methanamine
    10·1 answer
  • A tow truck does 10,000 J of work in 5 seconds. Calculate the power.
    15·1 answer
  • The reaction 2KBr(s) →+ Br2(l) + 2K(s) is a <br>Decomposition reaction
    5·1 answer
  • I don’t get this- it’s due tmrw
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!