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
Ne4ueva [31]
3 years ago
7

2.How many particles are present in one mole of particles?

Chemistry
1 answer:
asambeis [7]3 years ago
5 0

Answer:

1023 particles

Explanation:

You might be interested in
KOH and LiOH are examples of<br><br> bases<br><br> neutral compounds<br><br> acids<br><br> salts
vampirchik [111]
It is an example of bases
8 0
3 years ago
Read 2 more answers
Is dissolving salt a chemical change or physical change and why?
Firlakuza [10]

It's a physical change because the composition of the salt hasn't change. Only the change in substance/form has occured. To tell if something has undergone physical change is:

• Melting

• Boiling

• Freezing

• Condensing

• Breaking

• Bending

• Dissolving

• Molecules can change motion and proximity

To tell if something changed chemically:

• Molecules rearrange with other molecules to make new substance

• Can be production of flames

• Color change

• Bubbling/fizzing

• Temp. change

• change in composition


4 0
3 years ago
An unknown triprotic acid (H3A) is titrated with NaOH. After the titration Ka1 is determined to be 0.0013 and Ka2 is determined
e-lub [12.9K]

Answer:

6.68 X 10^-11

Explanation:

From the second Ka, you can calculate pKa = -log (Ka2) = 6.187

The pH at the second equivalence point (8.181) will be the average of pKa2  and pKa3. So,

8.181 = (6.187 + pKa3) / 2

Solving gives pKa3 = 10.175, and Ka3 = 10^-pKa3 = 6.68 X 10^-11

7 0
3 years ago
Why is Adam Driver hot? like I want him to step on me :)
3241004551 [841]

Answer:

AWWWWWWWWWWWWWWWW SOOO NICEEE

5 0
3 years ago
Calculate the number of chlorine atoms that are present in 66.05 g of dichloromethane, ch2cl2. when you have the number, take it
Whitepunk [10]
From the periodic table:
mass of carbon = 12 grams
mass of hydrogen = 1 gram
mass of chlorine = 35.5 grams
Therefore,
molar mass of CH2Cl2 = 12 + 2(1) + 2(35.5) = 85 grams

number of moles = mass / molar mass
number of moles of CH2Cl2 = 66.05 / 85 = 0.777 moles

One mole of CH2Cl2 contains two moles of Cl and each chlorine mole has Avogadro's number of atoms in it.
Therefore,
number of chlorine atoms in 0.777 moles of CH2Cl2 can be calculated as follows:
number of atoms = 0.777 * 2 * 6.022 * 10^23 = 9.358 * 10^23 atoms

Now, we will take log base 10 for this number:
log (9.358 * 10^23) = 23.97119
5 0
3 years ago
Other questions:
  • What is the concentration of your solution?
    14·1 answer
  • What is a correct expression of the law of conservation mass
    13·1 answer
  • The atom in a chemical bond that attracts electrons more strongly acquires a(n)____________ charge, and the other atom acquires
    11·1 answer
  • What is the reaction for the formation of FeNCS^2+
    6·1 answer
  • What element is this? How do you know?
    12·1 answer
  • assume that a water balloon has the same number of water molecules as a helium balloon has helium atoms. If the mass of the wate
    11·1 answer
  • 52.0 g of LiCl represents ______ moles of LiCl
    6·1 answer
  • Determine the direction of reaction if 1.00 M NOCl is combined with 0.500 M NO and 0.500 M Cl2 in a sealed flask. No reaction oc
    12·1 answer
  • List any two examples of man-made<br>de astery​
    5·1 answer
  • One of the advantages of nylon over rayon is that nylon:
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!