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
Serga [27]
3 years ago
7

Determine the number of atoms of O in 92.3 moles of Cr3(PO4)2

Chemistry
1 answer:
Irina18 [472]3 years ago
4 0

739 is the number of atoms of O in 92.3 moles of Cr3(PO4)2.

Explanation:

Molecular formula given is  = Cr3(PO4)2

number of moles of the compound is 92.3 moles

number of 0 atoms in 92.3 moles =?

From the chemical formula 1 mole of the compound has 8 atoms of oxygen

So, it can be written as

1 mole Cr3(PO4)2 has 8 atoms of oxygen

92.3 moles of Cr3(PO4)2 has x atoms of oxygen

\frac{8}{1} = \frac{x}{92.3}

x = 8 x 92.3

x = 738.4 atoms

There will be 739 oxygen atoms in the 92.3 moles of Cr3(PO4)2.

You might be interested in
what is the approximate area of a regular pentagon with a side lenghtt of 6 feet and a distance from the center to a vertex of 6
Degger [83]
A regular pentagon may be divided into 5 congruent triangles.


If the side of the pentagon is 6 feet, each base of the triangles will be 6 feet.


If the distance from the center to a vertex is 6 feet, all the sides of the triangles will 6 feet.


So there are 5 congruent, equilateral triangles each with side equal to 6 feet.


The area one of those triangles is calculateb by:


base * height / 2


height ^2 = (side length) ^2 - (side length /2)^2 = 6^2 - 3^2 = 36 - 9 = 27


=> height = √(27) ≈ 5.2 feet


And, using area = base * height / 2 ,


area of a triangle = 6 feet * 5.2 feet / 2 = 15.6 feet^2


And the area of the entire pentagon equals 5 triangles ≈ 5 * 15.6 feet^2 = 78 feet^2


Answer: 78 feet^2
6 0
3 years ago
Indicate whether the following are acidic, basic, or neutral solution
goldenfox [79]
You answer this by using the pH formula and and the relation of pH and pOH, pH = -log[H+] and 14 = pH + pOH. The correct classification are as follows:

<span>A. [H2O+]=6.0x10^-12
basic

B. [H3O+]=1.4x10^-9
basic

C. [OH-]=5.0x10^-12
acidic

D. {OH-]=3.5x10^-10
acidic

Hope this answers the question.

</span>
5 0
2 years ago
In the morning a student puts a warm soda in a ice filled cooler.
julsineya [31]

basically all of the molecules in the can of soda started to stop moving due to the compression and change of temperature. the ice had frozen the molecules and which then made the can of soda nice and cold lol

4 0
3 years ago
In a neutral atom, the number of protons _______ the number of electrons.
sergejj [24]

Answer:

equal the number of electrons.

Explanation:

8 0
3 years ago
Read 2 more answers
Write a nuclear equation for the beta decay of Promethium-165
padilas [110]

Answer:

see your answer in pic

Explanation:

4 0
3 years ago
Other questions:
  • Balancing Equations
    12·1 answer
  • Propose a reasonable synthesis to get benzylamine from toluene
    11·1 answer
  • As the solar system formed, most of its mass became concentrated in one part of it. What is that that part?
    10·2 answers
  • What is the main factor that determines if a star will become a black hole
    11·1 answer
  • Which part of the factory is most similar to the nucleus of a living cell
    15·1 answer
  • Research to find out 5 uses of magnets in our daily life in medical contexts, route finding, security, sorting steel from other
    8·1 answer
  • With all his gear, Neil Armstrong weighed 360 pounds on Earth. When he landed on the Moon, he weighed 60 pounds. Why?
    7·1 answer
  • How many liters of oxygen are required to react completely with 1.2 liters of hydrogen to form water? 2H2(g) + O2(g) → 2H2(g)
    15·1 answer
  • Suppose you wish to determine the order of the reaction. You initially measure a rate, r0, given some arbitrary concentration of
    5·1 answer
  • C2H6O + _02&gt; _CO2 + _H20<br> +<br> Please help balance this equation
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!