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
vladimir2022 [97]
3 years ago
5

How many formula units are in 2.58 moles of Caci.?

Chemistry
1 answer:
mafiozo [28]3 years ago
3 0

Answer:

1.55 x 10²⁴ formula units

Explanation:

Given parameters:

Number of moles of CaCl₂   = 2.58moles

Unknown:

Formula units in the compound  = ?

Solution:

To solve this problem, we must understand that;

    1 mole of a substance contains 6.02 x 10²³ formula units

   2.58 moles will contain 2.58 x  6.02 x 10²³ formula units  

                                            = 1.55 x 10²⁴ formula units

You might be interested in
Valnece electrons of Zn
Nady [450]
This means that neutral zinc atom has a total of 30 electrons surrounding its nucleus. To see how many of these electrons are valence electrons, write the electron configuration of a neutral zinc atom. Notice that the outermost shell, which for zinc is the fourth shell, n=4, has two electrons. Hope this helps. :)
6 0
3 years ago
After an afternoon party, a small cooler full of ice is dumped onto the hot ground and melts. If the cooler contained 6.60 kg of
gtnhenbr [62]

Answer:

The quantity of heat required to melt all the ice at 0°C is 2.21 * 10⁶ J

Explanation:

Latent heat of fusion  is the heat absorbed by a unit mass of a given solid at its melting point that completely converts the solid to a liquid at the same temperature. Its unit is Joules/kg or Joules/g.

1 calorie = 4.184 Joules

Therefore , 80.0 cal/g = 80.0 cal/g * 4.184 J/cal = 334.72 J/g

1 g = 0.001 kg; Heat of fusion in J/kg = 334.72 J/g * 1g /0.001 kg = 3.35 * 10⁵ J/kg

Quantity of heat, Q = mass * latent heat of fusion of ice

quantity of heat required = 6.60 kg * 3.35 * 10⁵ J/kg

Quantity of heat required = 2.21 * 10⁶ J

Therefore, the quantity of heat required to melt all the ice at 0°C is 2.21 * 10⁶ J

5 0
3 years ago
How can you explain therma expansion in terms of kinetic energy ? please help
nata0808 [166]

Answer:  

Heat causes the molecules to move faster (heat energy is converted to kinetic energy), which means that the volume of a solid or a liquid. ... The particles in the air do not have more kinetic energy than particles in the mercury, because they are the same.

Explanation:

I hope this help you!

7 0
3 years ago
Select all of the answers that apply. Without its atmosphere, Earth would be _____. warmer bombarded by meteorites similar to Ma
Papessa [141]
Without its atmosphere, Earth would be bombarded by meteorites, similar to mars, relatively lifeless. Without the atmosphere objects can just enter the atmosphere and cause serious harm to us, but with the atmosphere it basically reduces damage and shrinks it to size. Without the atmosphere earth would be like mars since it doesn't have a atmosphere. Without the atmosphere earth would be relatively lifeless since without air, us humans cant breathe so we will not survive.

6 0
3 years ago
Read 2 more answers
What type of metal is iron nitrate
Dima020 [189]

Answer:

tabla periodica 6

Explanation:

.....

6 0
3 years ago
Other questions:
  • A 420-N force acts on a 400-N object, and the force is from the north. In which direction will the object move?
    12·2 answers
  • The Resource Conservation and Recovery Act controls hazardous waste from its creation to its disposal. Please select the best an
    13·2 answers
  • What is the percent yield of lithium hydroxide from a reaction of 7.40g of lithium with 10.2g of water? The actual yield was mea
    6·2 answers
  • The next two questions provide some more practice on calculations using half-lives. The isotope 64Cu has t1/2 of 12.7 hours. If
    15·1 answer
  • How many grams of Cl are in 485g of CaCl2
    6·1 answer
  • Which of the following statements is TRUE?Group of answer choicesNone of the above are true.Dispersion forces are generally stro
    13·1 answer
  • I WILL GIVE BRAINLIEST
    7·1 answer
  • What is the density of a bar of lead that weighs 173 g and has the following dimensions: l= 2.00 cm, w = 3.00 cm, h = 1.00 in?
    13·1 answer
  • 5. (10 Points) The volume of air in the lungs of a typical human is 6.0 L.
    11·1 answer
  • What is the average atomic mass of Lithium if 7.42% exists as 63Li (with a mass of 6.015 amu) and 92.58% exists as 73Li (7.016 a
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!