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
exis [7]
3 years ago
10

What volume of 2.5% (m/v) KOH can be prepared from 125 mL of a 5.0% KOH solution?

Chemistry
1 answer:
TiliK225 [7]3 years ago
6 0

Hey there!:

According to lew of dilution :

M*V = M'*V'

Where :

M = concentration of stock solution =  5.0% ( m / V )

V = volume of stock solution = 125 mL

M' = concentration of dilute solution = 2.5% ( m/V)

V' = volume of dilute solution = ??

Plug the values  we get:

V' =  m*V / M'

V' =  5.0 * 125 / 2.5

V' = 625 / 2.5

V' = 250 mL

Therefore , the volume prepared is 250 mL


Hope that helps!



You might be interested in
Gold has a high potential and potassium has a low chemical potential.
Aleksandr-060686 [28]
Gold potential is the correct answer
5 0
2 years ago
4. A scientific theory is
Airida [17]

Answer:

Option 1

Explanation:

3 0
2 years ago
The majority of the mass of the atom is located in the _______. A) nucleus B) core electrons C) pions and quarks D) valence elec
NeX [460]

The majority of the mass of the atom is located in the nucleus. Remember that the nucleus contains both protons and neutrons and therefore, most of the mass of the atom.

5 0
3 years ago
Read 2 more answers
4. Juan tiene un cilindro de 40 libras herméticamente cerrado con gas propano y lo conecta mediante una válvula a otro cilindro
ch4aika [34]

Answer:

Ver explicacion

Explanation:

Cuando el cilindro de 40 libras está conectado al cilindro de 100 libras, generamos una presión que continúa hasta que los dos cilindros alcanzan la misma presión de gas en equilibrio. Recuerde que el cilindro de 100 libras estaba inicialmente vacío. Esto significa que su presión inicial es 0. El cilindro de 40 libras ya estaba lleno, por lo que dividimos esta cantidad en dos para tener en cuenta su distribución entre los dos cilindros.

Ahora tenemos 20 libras de gas propano presentes en cada cilindro. La implicación de esto es que, en el cilindro de 100 libras, necesitamos 80 libras adicionales para completar las 100 libras.

5 0
2 years ago
A runner completes a 5-mile run.how many yards did she run
slega [8]

The runner ran a total of 8800 yards.

5 0
3 years ago
Other questions:
  • Place an X next to each action that would most likely increase the reaction rate.
    14·1 answer
  • Meaning of carbon cycle​
    14·1 answer
  • *WILL GIVE BRAINLIEST IF SOMEONE ANSWERS THIS CORRECTLY ASAP!!!!*
    7·2 answers
  • If 5.0mL of HC2H30 require 4.96mL of 0.9581 M NaOH to just consume the HC2H302, what is the
    9·1 answer
  • For the Balanced Reaction: 3 Mg + Fe2O3 → 3 MgO + 2 Fe
    5·1 answer
  • An antacid tablet weighing 1.30g was fully neutralized at 42.00 mL(an excess amount) of 0.250MHCl. 10.00 mL of 0.100 M NaOH was
    5·1 answer
  • If you have 3 moles of calcium carbonate, how many grams of calcium bicarbonate are formed?
    7·1 answer
  • How much work is done by a 35-watt light bulb if it is on for 1,320 seconds?
    8·1 answer
  • What substance and mixture have in common?
    9·1 answer
  • Identify each described physical separation technique. a liquid is carefully poured out, leaving the solid behind in the contain
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!