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
timama [110]
3 years ago
5

How many molecules in each sample? 64.7 g N2 83 g CCl4 19 g C6H12O6

Chemistry
1 answer:
lilavasa [31]3 years ago
3 0

Answer:

  • 1.39x10²⁴ molecules N₂
  • .25x10²³ molecules CCl₄
  • 6.38x10²² molecules C₆H₁₂O₆

Explanation:

First we <u>convert the given masses into moles</u>, using the <em>compounds' respective molar mass</em>:

  • 64.7 g N₂ ÷ 28 g/mol = 2.31 mol N₂
  • 83 g CCl₄ ÷ 153.82 g/mol = 0.540 mol CCl₄
  • 19 g C₆H₁₂O₆ ÷ 180 g/mol = 0.106 mol C₆H₁₂O₆

Then we multiply each amount by <em>Avogadro's number</em>, to <u>calculate the number of molecules</u>:

  • 2.31 mol N₂ * 6.023x10²³ molecules/mol = 1.39x10²⁴ molecules
  • 0.540 mol CCl₄ * 6.023x10²³ molecules/mol = 3.25x10²³ molecules
  • 0.106 mol C₆H₁₂O₆ * 6.023x10²³ molecules/mol = 6.38x10²² molecules
You might be interested in
Rock whose texture, mineralogy, or chemical<br> composition has been altered without melting it.
AURORKA [14]

Answer:

I believe it would be C or B

6 0
3 years ago
What does an atom contain?
netineya [11]

Answer:

neutron, proton, and electrons

Explanation:

The protons and the neutrons make up the center of an atom which is called the nucleus

7 0
3 years ago
What is the mass of a liquid having a density of 1.40 g/mL and a volume of 3.090 L
riadik2000 [5.3K]
It has a mass of 4.326 grams. 


4 0
3 years ago
Read 2 more answers
Why is a magnetic field a vector quantity?
Alik [6]

Answer:

A

Explanation:

a vector quantity must have a direction. without a direction the value is called a scalar quantity

ie: velocity is a vector because it is how fast an object moves in a certain direction. speed is a scalar because it is how fast an object moves regardless of direction

5 0
3 years ago
How does liquid turn into gas? (Question for my sister)
kodGreya [7K]
If you were to take water (like many other materials) and break it up into almost the smallest things you could, you’d get molecules. If the molecules are stuck together really tightly in a regular pattern, then they’re called a solid. The solid form of water is ice. This actually makes a lot of sense, because it certainly does seem like all the little parts of a solid (like ice) are stuck together very tightly.

When you heat something up, it makes the molecules move faster. If you heat up a typical solid, it melts and becomes a liquid. In a liquid (like water), the molecules are still stuck together, but they can move around some. What actually happens is that the molecules are still sort of sticking together, but they’re constantly breaking apart and sticking to different molecules. This also makes sense when you think about water. Water sort of sticks together, but it breaks apart /really/ easily.

If you heat a liquid like water up even more (like if you put it in a pot on the stove), then the molecules will move around so fast that they can’t even hold on to each other at all. When this happens, all of the molecules go flying apart and become a gas (like when you boil water to make steam). The process of gas molecules leaving the liquid to go into the gas is called "evaporation." The opposite process is called "condensation."

<span>Hope this answers your question!</span>
4 0
3 years ago
Other questions:
  • When each of the following processes reach equilibrium, does the system in question contain mostly reactants, mostly products, o
    15·1 answer
  • Which statement best describes a battery?
    12·2 answers
  • Which law states that at constant temperature the pressure of a given amount of gas is inversely proportional to the volume of t
    8·1 answer
  • 100 POINTS Which observation indicates that the kinetic-molecular theory has limited use for describing a certain gas? Gas parti
    12·2 answers
  • Why does Richard Rhodes think nuclear power is important moving forward?
    15·1 answer
  • How many moles are in 347 grams of HBr
    7·1 answer
  • Do this Q7 if someone do I will her or him brainliest
    8·1 answer
  • Calcium is an element. What is the smallest particle of calcium that has the same chemical properties of calcium?
    13·2 answers
  • How many moles of NaCl are in 2.35 liters of a 4.67 M solution?
    12·1 answer
  • Please help answer this question
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!