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
bezimeni [28]
3 years ago
7

25.0 ml of a 6.0 m stock solution is diluted using water to 100 ml. How many moles of are present in the dilute solution? 6.0 mo

les 0.6 moles 0.15 moles 1.5 moles
Chemistry
1 answer:
AveGali [126]3 years ago
4 0

Answer:

The number of moles is 0.15 moles

Explanation:

Given data

The volume of the solution is 25.0 mL = 25 *10^-3 L

The molarity of the solution is 6.0 M

This means the number of moles in this solution is: 6.0 M * 25 *10^-3 L = 0.15 moles

This solution will be diluted, by increasing its volume to 100 mL = 100*10^-3 L

The new solution has 0.15 moles in 100 mL

The Molarity of this solution will change, but the number of moles will not change.

The number of moles is still 0.15 moles

You might be interested in
Drag each label to the correct location on the table.
AleksAgata [21]

Explanation:

1) Boyle's Law: This law states that pressure is inversely related to the volume occupied by the gas at constant temperature and number of moles.

P\propto \frac{1}{V}     (At constant temperature and number of moles)

  • When the size of the chamber is increased the volume occupied the gas will increase with which pressure exerted by the gas will decrease down.
  • When we press the inflated balloon the pressure on the gas is increased with which volume of the occupied by the gas inside the balloon decreased.

2) Charles' Law: This law states that volume occupied by the gas is directly related to the temperature of the gas at constant pressure and number of moles.

V\propto T    (At constant pressure and number of moles)

  • The size of the balloon deceases because the in winters the temperature decreases with which volume of the gas present in the balloon also decreases.
  • When the flexible closed container is heated the temperature of the gas inside the container increases with which the volume occupied by the gas in the container will increase resulting in expanding of container.

3) Avogadro's Law: This law states that volume occupied by the gas is directly related to the number of moles of the gas at constant pressure and temperature.

V\propto n   (At constant temperature and pressure)

When we blow air into the balloon the umber of air particles increases with which the volume of the gas inside the balloon also increases resulting in increase in size of the balloon.

3 0
3 years ago
which of the following cannot be considered a single phase? a) a pure solid b) a pure liquid c) a homogeneous mixture d) a heter
Trava [24]
The question is asking to choose among the following choices is cannot be considered as a single phase and base on my further research and understanding about the sad topic, I would say that the answer would be <span>d) a heterogeneous mixture. I hope you are satisfied with my answer </span>
8 0
3 years ago
A voltaic cell that uses the reaction
love history [14]
Did you intend to write [PdCl4]^-2 instead of PdCl2-4? If so, then: 

<span>Cathode: [PdCl4]^-2(aq) + 2e- ======⇒ Pd(s) + 4Cl-(aq) </span>

<span>Anode: Cd(s) ==⇒ Cd+2(aq) + 2e-</span>
4 0
3 years ago
Which element is reduced in the following reaction: 2Mg+O₂ → 2MgO if Mg goes from 0 to +2 and O goes from 0 to -2?
Lyrx [107]

Answer:

O.

Explanation:

  • The element which is oxidized is the element that losses electrons and its oxidation state be more positive.
  • The element which is reduced is the element that gain electrons and its oxidation state be more negative.

<em> O goes from 0 to -2, so, it is the element that is reduced.</em>

8 0
3 years ago
What are the different characteristics that can be used to identify an unknown mineral
brilliants [131]
These are just a couple ways to identify unknown minerals,touch taste smell 

4 0
4 years ago
Read 2 more answers
Other questions:
  • True or False:<br> color is a reliable identifier.<br><br> true <br><br> false
    8·2 answers
  • What is the chemical formula for calcium hydroxide and explain why
    5·1 answer
  • HI + 2 KMnO4 + 3 H2SO4 --&gt; 5 I2 + 2 MnSO4 + K2SO4 + 8 H2O55. According to the balanced equation above, how many moles of HI w
    9·1 answer
  • If you prepare a solution by adding sufficient amount of solute so that after heating and cooling the solution there is a visibl
    6·2 answers
  • Which is more reactive: Magnesium or Potassium?
    5·1 answer
  • A gas has a volume of 1.50mL at 1.89atm. What is the volume when the pressure is 2.75atm? What is the name of the gas law used t
    7·1 answer
  • is anyone willing to help me finish the last 10 pages of a chemistry packet(grade 11)? can offer money
    15·1 answer
  • **25 POINTS**. I doubt anyone will do this but it's worth a try to ask. To do this exercise, you will need fifteen containers, f
    5·1 answer
  • Do they have the same size as the atoms of all other elements
    7·1 answer
  • Which nuclear energy releases the most energy
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!