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
Lady_Fox [76]
3 years ago
5

List the steps needed to convert the number of atoms to the mass of an element. (Hint: there are 2).

Chemistry
1 answer:
Ghella [55]3 years ago
7 0
One mole of anything, including atoms, is
6.022
×
10
23
(Avogadro's number) of them. Usually you will have a given mass of an element. There are two basic steps to get from the given mass to the number of atoms. They are:
Mass
→
Moles
and
Moles
→
Atoms
You might be interested in
Calculate the pH of a 0.50 M HIO. The Ka of hypoiodic acid, HIO, is 2.3x10–11.0.305.325.479.474.80
never [62]

Answer:

pH = 5.47

Explanation:

The equilibrium that takes place is:

HIO ↔ H⁺ + IO⁻

Ka = \frac{[H+][IO-]}{[HIO]} = 2.3 * 10⁻¹¹

At equilibrium:

  • [HIO] = 0.5 M - x
  • [H⁺] = x
  • [IO⁻] = x

<u>Replacing those values in the equation for Ka and solving for x:</u>

Ka=\frac{x^2}{0.5-x}=2.3*10^{-11} \\x^2=(2.3*10^{-11})(0.5-x)\\x^2=1.15*10^{-11}-2.3*10^{-11}x\\x^2+2.3*10^{-11}x-1.15*10^{-11}=0\\x=3.39*10^{-6}

Then [H⁺]=3.39 * 10⁻⁶, thus pH = 5.47

7 0
3 years ago
How many oxygen molecules are required for glycolysis
morpeh [17]

Answer:

0

Explanation:

glycolysis requires no oxygen

6 0
2 years ago
Read 2 more answers
Which physical change is endothermic?
Helen [10]

Answer: The correct option is 1.

Explanation: Endothermic reactions are the reactions in which heat is provided to break down the reactant molecules.

In option 1:

The stronger intermolecular forces between the particles in solid molecule are broken down to convert into gaseous form. Hence, some energy in the form of heat is provided to move them far apart. Therefore, it is considered as an endothermic reaction.

In option 2, 3 and 4:

All the other processes involves the formation of bonds and thus there is no need to provide any energy.

5 0
2 years ago
Read 2 more answers
Where does the Sun’s light come from and why does it look different at different times of the day?
Contact [7]

Answer:

Sun light comes from the sun which is a part of our solar system

and it look different because the earth is spinning so the angle will can and that will determine if the sun rays will get light or darker

3 0
2 years ago
An aqueous solution of ____ will produce a basic solution.
Anastasy [175]
NaClO, K2CO3, and NaF will form basic soltions.

6 0
3 years ago
Read 2 more answers
Other questions:
  • When the plant releases water through its leave it is called?
    7·1 answer
  • Which subatomic particle has negligible mass and travels around outside the nucleus?
    8·1 answer
  • Identify fossil types match each each type of fossil to its description
    13·2 answers
  • How many grams of a stock solution that is 87.5 percent H2SO4 by mass would be needed to make 275 grams of a 55.0 percent by mas
    6·2 answers
  • A botanist is measuring plants to determine amount of growth after fertilizer was used. A ruler was used for the measurements. W
    14·1 answer
  • How do chemicals affect the environment
    14·2 answers
  • The substance in a chemical reaction that ate combined or separated to form new substance are the
    10·1 answer
  • Hi does anyone have the data table answers for the Charles Law Lab Report from Edge?
    13·1 answer
  • What is the atomic weight of Na?
    12·1 answer
  • If 30.0 mL of 0.150 M CaCl₂ is added to 38.5 mL of 0.100 M AgNO3, what is the mass of the AgCl precipitate?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!