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
ivann1987 [24]
2 years ago
6

How many formula units of CaCO3 are present in 4.72 n of calcium carbonate?

Chemistry
1 answer:
arlik [135]2 years ago
4 0

The number of formula units is calculated with the use of Avogadro's constant. That is, on the basis of Avogadro's law:

1 mole = 6.02 × 10²³ formula units

4.72 moles = x formula units

By cross multiplication, we get:

4.72 moles × 6.02 × 10²³ formula units / 1 mole = 2.841 × 10²⁴ formula units.

Thus, the number of formula units of CaCo₃ that are found in 4.72 moles calcium carbonate is 2.841 × 10²⁴.

You might be interested in
Determine the electron-group arrangement, molecular shape, and ideal bond angle(s) for each of the following:
antoniya [11.8K]

The electron group arrangement of PH₃ is tetrahedral. The molecular shape is a Trigonal pyramid, and the bond angle is 93°.

<h3>What is the bond angle?</h3>

The angle between the atoms in a compound is known as the bond angle. The degree of the binding angle is specified. There is also the bond length. It is the separation between the two atoms' nuclei.

The bond angle between the atoms of phosphine is 93°. It has one lone pair. The central atom is covered with 4 atoms.

Thus, the electron-group arrangement of phosphine is tetrahedral. The molecular geometry or shape is a trigonal pyramid. The bond angle is 93°.

To learn more about bond angles, refer to the link:

brainly.com/question/1851495

#SPJ4

8 0
2 years ago
idk which to have chocolate milk or a homemade milkshake can anyone help me and pick which one i should make
Anastaziya [24]
Homemade milkshake(banana&strawberry)
6 0
3 years ago
An electron is the largest part of an atom. True or False?
IrinaVladis [17]

Answer: False

Explanation:

Electrons are the smallest of the three particles that make up atoms. Electrons are found in shells or orbitals that surround the nucleus of an atom. Protons and neutrons are found in the nucleus. They group together in the center of the atom.

6 0
3 years ago
When Aluminum oxide is heated with iron no reaction takes place?
Keith_Richards [23]

Answer:

Explanation:

That's correct. Once Aluminum becomes an ion, it is very hard to force it to take back its electrons. Only a few elements can do it. Iron is not one of them.

7 0
2 years ago
What are the uses of solution?<br>​
Ilia_Sergeevich [38]

Answer:

The majority of chemical processes are reactions that occur in solution. Important industrial processes often utilize solution chemistry. "Life" is the sum of a series of complex processes occurring in solution. Air, tap water, tincture of iodine, beverages, and household ammonia are common examples of solutions.

four types of solution:

Turpentine as a solvent are used in the production of paints, inks and dyes. ↔Water as a solvent is used in the making of food, textiles, soaps and detergents. ↔Alloys are solid solutions that are used in the manufacture of cars, aerospace and other vehicles.

Explanation:

can you pls make me brainliest

5 0
2 years ago
Other questions:
  • A characteristic feature of any form of chromatography is the ________.a. calculation of an Rf value for the molecules separated
    13·1 answer
  • Calculate the free-energy change for the dissolution of 1 mole of nabr and 1 mole of nai at 298 k, given that the values of δh°s
    6·1 answer
  • Is a solution in which (OH) = 1.0 10-1M acidic, basic, or neutral?
    9·1 answer
  • Naturally occurring boron has an atomic weight of 10.811. Its principal isotopes are 10B and 11B. Part A What is the abundance (
    10·1 answer
  • Calculate the standard molar enthalpy for the complete combustion of liquid ethanol (c2h5oh) using the standard enthalpies of fo
    12·2 answers
  • Why is the behavior of real gases still useful?
    6·1 answer
  • Suggest the methods used to separate the following:
    7·1 answer
  • Which is NOT an example of a pure substance?
    9·1 answer
  • a sample of solid is decomposed and found to contain 6.52g of potassium, 4.34 g of chromium and 5.34 of oxygen, what is the empi
    10·1 answer
  • 1.0 mole of KCl(aq) is added to which solution to produce a precipitate?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!