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
swat32
2 years ago
14

How do you find a mole (i need an example) i hate chem pls help

Chemistry
1 answer:
galben [10]2 years ago
6 0

Answer:

I'm pretty sure its just the mass of the sample divided by the molar mass

for example if I had like 7g of carbon and wanted to find the moles, I would divide the mass I have (7g) by the molar mass (the atomic mass value on your periodic table, in this case for carbon it would be 14g)

moles = \frac{mass}{molarmass} = \frac{7}{14} = 0.5\ moles

Hope this helped

You might be interested in
Objects that can bew seen only under magnification
timofeeve [1]
The answer is (D) microscopic. You can remember this, because the name is very close to "microscope," an instrument used to greatly magnify and observe tiny organisms and objects.
4 0
3 years ago
Which of the following is not an example of a molecule?
dybincka [34]

Answer:

He

Explanation:

A molecule is the smallest physical unit of a substance that can exist independently, consisting of 2 or more atoms chemically combined

He is one atom of Helium

4 0
3 years ago
Protons characteristics
Katarina [22]
-they are inside the nucleus of an atom
- they have a relative charge of +1
- they have a relative mass of 1
5 0
3 years ago
Read 2 more answers
An atom has a nucleus that has mass and volume. How does the mass of the nucleus compare to the mass of the atom? How does the v
makvit [3.9K]

Answer:

The mass of the nucleus is almost the same as the atom because a majority of the mass of an atom is stored in the nucleus.

The volume of an atom is larger than the nucleus. The nucleus is a tiny, concentrated area inside of the atom. Atoms are mostly empty space inside.

Explanation:

8 0
3 years ago
When a 0.4500 g sample of impure potassium chloride was dissolved in water and treated with an excess ofsilver nitrate, 0.8402 g
Svetllana [295]

Answer:

97.78% KCl in the original sample

Explanation:

5 0
3 years ago
Other questions:
  • According to the MSDS, which best describes propane?
    5·1 answer
  • Which is a substance fruit salad granola cereal spaghetti or table salt
    5·2 answers
  • Match the following words.
    9·1 answer
  • Two samples of calcium fluoride are decomposed into their constituent elements. The first sample produced 0.154 g of calcium and
    11·1 answer
  • How many grams of NaCl are contained in 0.50 L of a 4.20 M solution?
    7·1 answer
  • Which statement about the central nervous system (CNS) and the peripheral nervous system (PNS) is true?
    7·2 answers
  • Why are the group I elements are very active​
    6·1 answer
  • 1. A pure substance contains ONLY one kind of​
    12·1 answer
  • What does the atomic mass number of each atom represent.
    5·1 answer
  • Please help not trying to fail this year
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!