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
makkiz [27]
3 years ago
9

24.08 x 10^23 atoms of Boron (B) is equal to how many moles of Boron?

Chemistry
2 answers:
Naddika [18.5K]3 years ago
6 0

Answer:

4 moles.

Explanation:

We know that the number of atoms in a mole of a substance = Avagadro's number = 6.023X10^{23}

the moles of boron containing 24.08X10^{23} atoms will be:

moles=\frac{numberofboronatoms}{avagadro'snumber}=\frac{24.08X10^{23}}{6.023X10^{23}}=3.99=4

Thus there will be four moles in the given atoms of boron.

padilas [110]3 years ago
5 0
1 mole ----------- 6.02 x 10²³ atoms
? mole ---------- 24.08 x 10²³ atoms

moles B = ( 24.08 x 10²³) x 1 / 6.02 x 10²³

moles B = 24.08 x 10²³ / 6.02 x 10²³

= 4 moles

Answer B

hope this helps!
You might be interested in
Use atomic properties to explain the reduction of a less active metal by a more active one:(b) in the molten state. Give a speci
Bad White [126]

The reduction of a less active metal by a more active one is called metal displacement reactions. For example:

Fe + CuSO4 → FeSO4 + Cu

<h3>What is metal displacement reaction? </h3>

Displacement reactions is a reaction which includes a metal and the compound of a other metal. A more reactive metal will push or displace out a less reactive metal from its compound in this displacement reaction. The metal which is less reactive left uncombined after the reaction.

As we know that, electrons are the basis of the chemical reactions. If chemical compound or element A is more easily oxidized than B, then according to the terms of the activity series, the elements which are more easily oxidized can react with more chemicals, since they are able to act as a reducing agents for more chemicals.

Since, Metal ions are positively charged ions as they lose electrons. Some metals give up their electrons more readily than others and become more reactive.

Thus, we concluded that the reduction of a less active metal by a more active one is called metal displacement reactions. For example:

Fe + CuSO4 → FeSO4 + Cu

learn more about metal displacement reaction:

brainly.com/question/11777638

#SPJ4

6 0
2 years ago
What is the purpose of strawberry seeds
Butoxors [25]

Answer:

To help spread seeds to make more strawberries. Once a person bites into a strawberry some of the seeds fall and help plant new ones.

Explanation:

Hope this helps:)

7 0
4 years ago
Enough of a monoprotic acid is dissolved in water to produce a 0.0121 M solution. The pH of the resulting solution is 6.49. Calc
Hitman42 [59]
Calculate the H positive from the pH equation: pH equals -log (H positive). This would be 10 to the -6.49. Let's call the acid HA. To calculate Ka in this equation, Ka equals H positive times A- over HA. HA is going to be the 0 0121. So, Ka=(10^-6.49)^2/0.0121. This equals 1.05*10^-13/0.0121. Ka then equals 8.65*10^-12.
4 0
3 years ago
The cell of your body need energy to carry out life function. Which of the following body responses is a sign that your cells ne
Shkiper50 [21]
B is my pick that's what I think
8 0
3 years ago
The element X has three naturally occurring isotopes. The masses (amu) and % abundances of the isotopes are given in the table b
denis-greek [22]

Answer:

220.42098 amu

Explanation:

(220 .9 X  .7422) + (220 X .0.1278) + (218.1 X 0.13) =     220.42098 amu

These are weighted averages.

So, we will take mass of one and multiply by abundance percentage that is provided and add them together.

In order to calculate the  average atomic mass, we have to convert the percentages of abundance to decimals. So, you get

(220 .9 X  .7422) + (220 X .0.1278) + (218.1 X 0.13) =     220.42098 amu

6 0
3 years ago
Other questions:
  • What invention helped to contribute to the start of the civil war
    13·2 answers
  • This is the energy of motion and position - Kinetic Energy and Potential Energy are included here.
    12·1 answer
  • What are all examples of biotic factors running log, stream water, dead leaves, bacteria, soil
    9·2 answers
  • Advantages and disadvantages of chemical agents
    9·1 answer
  • A sample of nitrogen occupies 10.0 liters at 25°c and 98.7 kpa. What would be the volume at 20°c and 102.7 kpa?
    15·1 answer
  • What can be said about an endothermic reaction with a negative entropy change?
    15·1 answer
  • The titration of a 25.00 mL sample of NaOH required 28.25 mL of a 0.200 M HCl solution to reach the end point. What was the mola
    7·1 answer
  • When molybdate (MoO3) and Zinc (Zn) are heated together they react in this equation:
    7·1 answer
  • An object at a distance of 30 cm from a concave mirror gets its image at the same point. The focal length of the mirror is​
    6·1 answer
  • 1. Most of an atom is empty space, except for a tiny, dense core called the ___.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!