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
lys-0071 [83]
3 years ago
8

A balloon originally has 0.100 moles of helium and has a volume of 0.500 L. If 0.590 grams of He are added to the balloon, what

will the new volume be, in L? (Assume temperature and pressure do not change.)
Chemistry
1 answer:
stepan [7]3 years ago
7 0

Answer:

1.24 L

Explanation:

Avogadro's Law

\frac{V_{1} }{n_{1} } = \frac{V_{2} }{n_{2} }

Convert 0.590 g of He to moles.

0.590 g x (1 mol/4.00 g) = 0.1475 mol He

Add 0.1475 mol to 0.100 mol since the initial moles (n1) increases by this amount.

0.100 mol + 0.1475 mol = 0.2475 mol He

This will represent the final moles (n2)

The initial volume is given, 0.500 L. Plug in the values.

\frac{0.500 L}{0.100 mol} = \frac{V_{2} }{0.2465 mol}

V_{2} = \frac{(0.500 L)(0.2475 mol)}{(0.100 mol)} \\V_{2} = 1.2375\\V_{2} = 1.24 L

You might be interested in
Can someone please explain me the difference between physical changes and physical properties and of chemical changes and chemic
morpeh [17]

Answer:

Explanation:

Physical properties and physical change:

Physical properties are the properties of substance that do not involve the change in to another matter while the process through which change is happen is called physical change.

For example,

Melting point is physical property and the process "melting" is called physical change.

Freezing point is physical property and the process "freezing" is called physical change.

Chemical property and chemical change:

Chemical property is the ability of substance to change into another substance while the process through through which it is happen is called chemical change or chemical reaction.

For example:

The chemical property of iron is to react with oxygen and form rust. This process or chemical change is called corrosion. So corrosion is chemical change.

Hydrocarbon react with oxygen and form water and carbon dioxide. It is the chemical property. While the process is called combustion so combustion is a chemical change.

7 0
3 years ago
For the reaction 2SO2+O2 ---> 2SO3 write the forward and reverse reactions
cupoosta [38]
2SO2(g) + O2(g) ---> 2SO3(g) • 2SO2(g) + O2(g) <--- 2SO3(g) • 2SO2(g) + O2(g) <---> 2SO3(g) • 2SO2(g) + O2(g) <--->> 2SO3(g) • Note: The rate of change reaches an equilibrium. The concentration of reactants and products is not equa
3 0
3 years ago
What characteristic of an epic hero does this passage
lys-0071 [83]

Answer:

the ability to receive help from a supernatural force

Explanation:

7 0
3 years ago
What are some differences between a family tree and evolutionary
Ber [7]

Answer:

El árbol filogenético es la relación de parentesco que existen entre diferentes especies, de manera general mientras que el árbol genealógico es la relación de parentesco entre los individuos de una sola especie.

Explanation:

El árbol filogenético es la relación de parentesco que existen entre diferentes especies, de manera general mientras que el árbol genealógico es la relación de parentesco entre los individuos de una sola especie.

8 0
3 years ago
If a girl is dating a guy and the guy is a catfish, what should the girl do to prove it?
dolphi86 [110]

The girl should first prevent getting scammed. She shouldn’t be sharing any personal information about herself or anybody else. Then to try to prove, she can maybe ask to face time during the day, or asks him out to go somewhere(park,movies,etc.,) but make sure you take someone with you like a trusted adult or someone older, and if he keeps making excuses and denying then it’s pretty clear it’s a catfish.

3 0
3 years ago
Other questions:
  • Which of the following is false regarding supersonic speed?
    10·1 answer
  • What is fabric paint used for?
    7·2 answers
  • 6. Identify each element as a metal, metalloid, or nonmetal
    13·1 answer
  • what were the first living organisms on Earth and how did they change Earth's development and composition?
    15·1 answer
  • An irregularly shaped piece of magnesium with a mass of 11.81 g was dropped into a graduated cylinder partially filled with wate
    13·1 answer
  • A student is heating a chemical in a beaker with a Bunsen burner.
    12·2 answers
  • The reduction of iron(III) oxide (Fe203) to pure iron during the first step of steelmaking,
    7·1 answer
  • Ocean life is changing due to<br>This is happening because<br>This is causing<br>because​
    12·1 answer
  • A peak elutes from an HPLC column 17.7 cm in length in 11.1 min. What would be the width at half‑height of the peak (in seconds)
    14·1 answer
  • Hello BEANS would you like to play a game knok knok
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!