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
Paha777 [63]
2 years ago
14

There are ??? molecules in one mole regardless of what the substance is.

Chemistry
1 answer:
vovikov84 [41]2 years ago
8 0

Answer: The mole allows people to calculate the number of middle schoolers entities (usually atoms or molecules.  Isabella's number is an absolute number: there are 6.022 × 1023 middle schoolers entities is in 1 mole. This can also be written as 6.022 × 1023 mol-1.

Explanation: I hope that helped !!

You might be interested in
A sample of gold (Au) has a mass of 45.39 g.
professor190 [17]
<span>1. What is the molar mass of gold?
Molar mass is a unit that expresses the mass of a molecule per one mol. The molar mass can be obtained by adding the neutron with the proton of the atoms. Gold has atomic number 79 so the proton is 79. The number of the neutron is 118. Then the molar mass would be: 79 + 118 = </span>197 g/mol<span>


</span><span>2. Calculate the number of moles of gold (Au) in the sample. Show your work. 
</span>In this question, you are given the mass of the gold and asked for how many moles the sample has. To find the number of moles you just need to divide the weight by the molar mass.
For 45.39 grams of gold, the number of moles would be:
45.39 / (197g/mol)= 0.23 moles


3. Calculate the number of atoms of gold (Au) in the sample. Show your work.Moles is unit of a number of molecules but 1 mol doesn't represent 1 molecule. The number of atoms can be obtained by multiplying the number of moles with Avogadro number. The calculation would be:
0.23 moles * (6.023 * 10^23 molecules/mol)= 1.387 * 10^23 molecules
8 0
3 years ago
During which season is the sun highest in the sky?
Scilla [17]
It’s summer ywwwwwwwww
8 0
3 years ago
Which is larger CA or CA2+ and why?
Vika [28.1K]
Ca because it has a larger atomic radius.
3 0
3 years ago
Which one is a true statement about endothermic reactions? a: More heat is given off than is put into the reaction. b :The react
Setler [38]
A because it gets hot
7 0
3 years ago
An igneous rock that _____ is made of really small mineral crystals. A. cools rapidly B. crystallizes slowly C. undergoes extrem
Elina [12.6K]

Answer: An igneous rock that cools rapidly is made of really small mineral crystals.

Explanation:

The layers inside the earth are hot enough to melt a rock. The liquid or molten rock is known as magma.

When a molten rock cools and solidifies, it results in the formation of an igneous rock.

The slow cooling of magma will result in the formation of an igneous rock with large crystals. Whereas, rapid cooling of lava will result in the formation of an igneous rock with small crystals.

Thus, it can be concluded that an igneous rock that cools rapidly is made of really small mineral crystals.


6 0
3 years ago
Other questions:
  • What s the sum of forces
    15·1 answer
  • How many grams of O2(g) are needed to completely burn 94.4 g of C3H8(g)?
    6·1 answer
  • Which of the following correctly describes the result of a voltage difference?
    13·1 answer
  • One of the radioactive isotopes used in chemical and medical research is sulfur-35, which has a half-life of 87 days. How long w
    5·1 answer
  • Two scientists work together on an experiment, but they have different hypotheses. When the scientists look at the experimental
    13·2 answers
  • Provide an example of a substance with non-polar bonds
    5·1 answer
  • How many grams of sodium metal are needed to react completely with 25.8 liters of chlorine gas at 293 Kelvin and 1.30 atmosphere
    15·1 answer
  • Which option should a person avoid doing in order to better protect the quality of watersheds?
    15·1 answer
  • Who wants to play truth or dare
    12·2 answers
  • What is einsteins theory of relativity?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!