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
netineya [11]
4 years ago
14

A mole is equal to 6.02 x 10²³, just like a dozen is equal to 12. So if you have a mole of carbon atoms, you have 6.02 x 10²³ ca

rbon atoms. Likewise, if you have a dozen carbon atoms, you have 12 carbon atoms. The atomic mass on the periodic table is also known as the MOLAR MASS. The molar mass is the mass of 1 mole of the element. Therefore, 1 mole of carbon has a mass 12.01g/mole. How many atoms are in 5.2 grams of carbon? Please show your work. (This is a unit conversion problem.)
Chemistry
1 answer:
Lyrx [107]4 years ago
6 0
You must perform stoichiometry! always divide by what you already have (this will make since in a moment)

5.2g Carbon | 1 mole/12.01g/mole | 6.02 x 10^23 atoms/1 mole | = atoms in Carbon

above is the basic stoichiometry set up but your calculation should be (5.2g/12.01g) x (6.02 x 10^23) = 2.61 x 10^23 atoms
You might be interested in
The table below shows a list of radioisotopes and their half-lives.
omeli [17]

Answer: D: plutonium-239

Explanation: Got it right on the quiz

6 0
3 years ago
Read 2 more answers
WILL GIVE BRAINLIEST
joja [24]

Answer:

Silver fluoride because it is the most soluble compared to the others.

Explanation:

3 0
4 years ago
Water is a polar solvent. Which of the following will not dissolve in water?
Rom4ik [11]
Answer: option B.olive oil.

Explanation.

The general rule of thumb when you analyze the ability of a solvent to dissolve a solute is that lke dissolves like.

That means:

1) polar solvents dissolve ionic or polar solutes

2) Non-polar solvents dissolve non-polar solutes

3) Non-polar solvents do not dissolve polar and ionic solutes 

4) Polar solvents do not dissolve non-polar solutes.


There are exceptions, but the rule is applicable in here.

<span>
A. table salt: it is NaCl, a ionic compound, so the water which is a polar solvent will dissolve the table salt.

B. Olive oil: the oils are non-polar organic compounds, so it will not be dissolved in a polar solvent.

C. Vinegar: vinegar is acetic acid, which is a polar organic compound, so it will be dissolved in water.

D. Sugar: sugar (sucrose) is a polar organic compound, so it will get dissovled in water.</span>
4 0
3 years ago
A 51.9g sample of iron, which has a specific heat capacity of 0.449·J·g?1°C?1, is put into a calorimeter (see sketch at right) t
Ghella [55]

Answer:

the initial temperature of the iron sample is Ti = 90,36 °C

Explanation:

Assuming the calorimeter has no heat loss to the surroundings:

Q w + Q iron = 0

Also when the T stops changing means an equilibrium has been reached and therefore, in that moment, the temperature of the water is the same that the iron ( final temperature of water= final temperature of iron = T )  

Assuming Q= m*c*( T- Tir)  

mc*cc*(T-Tc)+mir*cir*(T - Tir) = 0

 Tir = 20.3 °C + 300 g * 4.186 J/g°C * (20.3 C - 19 °C) / ( 51.9 g * 0.449 J/g°C )

 Tir = 90.36 °C

Note :

- The specific heat capacity of water is assumed 1 cal/g°C = 4.186 J/g°C  

- We assume no reaction between iron and water

7 0
4 years ago
What type of chemical bond would form between an atom of lithium (Li) and an atom of chlorine (Cl). Explain specifically why thi
Aleksandr-060686 [28]

Explanation:

  • When a bond is formed by transfer of electrons from one atom to another then it results in the formation of an ionic bond.

An ionic bond is generally formed by a metal and a non-metal.

For example, lithium is an alkali metal with atomic number 3 and its electronic distribution is 2, 1.

And, chlorine is a non-metal with atomic number 17 and its electronic distribution is 2, 8, 7.

So, in order to complete their octet lithium needs to lose an electron and chlorine needs to gain an electron.

Hence, both of then on chemically combining together results in the formation of an ionic compound that is, lithium chloride (LiCl).

An ionic compound is formed by LiCl because lithium has donated its valence electron to the chlorine atom.  

  • On the other hand, if a bond is formed by sharing of electrons between the two chemically combining atoms then it is known as a covalent bond.

For example, O_{2} is a covalent compound as electrons are being shared by each oxygen atom.

7 0
3 years ago
Other questions:
  • Which is the balanced chemical equation representing the synthesis of hydrogen gas and oxygen gas? h2 o2 h2o
    14·1 answer
  • Silicon is a conductive material.
    8·1 answer
  • Given the two compounds propane and pentanone, the one with the higher boiling point is
    14·1 answer
  • Why does the ozone layer important to life on earth?
    12·1 answer
  • 0.25 g na in moles please
    7·1 answer
  • HELP FAST! PLEASE <br> This is due in 4 hrs!!!!! Ahhhh
    11·1 answer
  • What is the mass percentage of JUST water in the hydrate CuSO4 ∙5H2O? The molar mass for the whole compound is 249.71 g/mol.
    14·1 answer
  • Which of the following is another term for eruptions of gas on the sun's surface?
    9·1 answer
  • Which detail shows ways that people can help stop Asian carp from spreading?
    12·1 answer
  • in the titration of naoh with vinegar, a student forgot to condition the buret, and it was wet with deionized water before filli
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!