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
bekas [8.4K]
3 years ago
6

You need to make 10.0 L of 1.2 M KNO3. What molar ( concentration) would the potassium nitrate solution need to be if you were t

o use only 2.5 L of it? *​
Chemistry
1 answer:
solniwko [45]3 years ago
6 0

Answer:

2.5L [NaCl] concentrate needs to be 4.8 Molar solution before dilution to prep 10L of 1.2M KNO₃ solution.

Explanation:

Generally, moles of solute in solution before dilution must equal moles of solute after dilution.

By definition Molarity = moles solute/volume of solution in Liters

=> moles solute = Molarity x Volume (L)

Apply moles before dilution = moles after dilution ...

=> (Molarity X Volume)before dilution = (Molarity X Volume)after dilution

=> (M)(2.5L)before = (1.2M)(10.0L)after

=> Molarity of 2.5L concentrate = (1.2M)(10.0L)/(2.5L) = 4.8 Molar concentrate

You might be interested in
1. Stirring increases the rate of solution
Blababa [14]

Answer:

1) <em>The correct answer is A. Collision</em>

2) A hot solvent helps a solid dissolve faster because an increase in <u><em>kinetic energy</em></u> that also increases the rate of collisions

Explanation:

When a solute is added into a solvent and stirred, the solute particles get distributed to all parts of the solvent as a result of stirring.

More collisions occur between the solute and the solvent due to stirring. This increases the rate of dissolving.

<em>When a solvent is heated, then the kinetic energy would increase and the atoms will collide with a much greater force. As a result, ore solute will be able to dissolve in the solvent. </em>

3 0
3 years ago
What are the 4 variables that describe a gas
Phantasy [73]
Pressure, volume, temperature, # moles Pressure, volume and temperature, and moles of gas


Hope that helps!!!!
8 0
3 years ago
What tool did scientist use to first study the Earth’s interior
IgorC [24]
Seismic waves hope this helps.
5 0
3 years ago
cuando las particulas estan separadas una de la otra se dice que su estado de agregacion o fisico es?
Mamont248 [21]

Answer:

english:

Solid is the state in which matter maintains a certain volume and shape; liquid is the state in which matter conforms to the shape of its container, but varies only slightly in volume; gas is the state in which matter expands to fill the volume and shape of its container.

español:

Sólido es el estado en el que la materia mantiene cierto volumen y forma; el líquido es el estado en el que la materia se adapta a la forma de su recipiente, pero varía sólo ligeramente en volumen; el gas es el estado en el que la materia se expande para ocupar el volumen y la forma de su recipiente.

7 0
3 years ago
Read 2 more answers
A substance placed in a container has a fixed volume and takes up the space of the container. In which state does this substance
DiKsa [7]
The substance is a solid
8 0
3 years ago
Other questions:
  • Which is the most common type of precipitation
    13·3 answers
  • When nitrogen and aluminum form an ionic bond, what is the formula? (2 points)
    11·2 answers
  • In two or more complete sentences, develop a logical argument to either support or refute the following statement. Be sure to pr
    12·1 answer
  • HURRYYYY PLEASE HELP!!!
    10·1 answer
  • How many atoms are present in 179.0 g of iridium
    14·1 answer
  • What happened to the salt molecules when they were added to cold water
    11·1 answer
  • What is the mass of a sample of sulfur with a volume of 5.0 cm3
    12·1 answer
  • Can someone tell me the answer and how to do the problem?
    12·1 answer
  • Two cars that are identical except for their color are traveling on the same road.
    15·2 answers
  • Water is a polar molecule. That means it has
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!