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
hichkok12 [17]
3 years ago
5

How many ml of 2.50 M NaOH solution are required to make a 525 mL of 0.150 M?

Chemistry
2 answers:
larisa [96]3 years ago
7 0

Answer:

31.5 mL of a 2.50M NaOH solution

Explanation:

Molarity (M) is an unit of concentration defined as moles of solute (In this case, NaOH), per liter of solvent. That is:

Molarity = moles solute / Liter solvent

If you want to make 525mL (0.525L) of a 0.150M of NaOH, you need:

0.525L × (0.150mol / L) = <em>0.07875 moles of NaOH</em>

<em />

If you want to obtain these moles from a 2.50M NaOH solution:

0.07875mol NaOH × (1L / 2.50M) = 0.0315L = <em>31.5 mL of a 2.50M NaOH solution</em>

stiks02 [169]3 years ago
3 0

Answer:

The correct answer is 31.5 ml

Explanation:

We have to dilute the more concentrated solution (2.50 M) to obtain a solution with a molarity of 0.150 M. We have the following data:

Initial concentration = Ci = 2.50 M

Final concentration = Cf = 0.150 M

Final volume = Vf = 525 ml

We consider the final and initial states and use the following expression to calculate the initial volume (Vi) in ml:

Ci x Vi = Cf x Vf

Vi= (Cf x Vf)/Ci = (0.150 M X 525 ml)/2.50 M = 31.5 ml

You might be interested in
Sphalerite contains about 30% zinc. Calculate the maximum amount of zinc that could be obtained from 1000kg sphalerite.
melisa1 [442]

Answer:

300kg

Explanation: The question says about 30%, so I think it is 300kg

3 0
2 years ago
A slice of pizza has 500 kcal. If we could burn the pizza and use all the heat to warm a 50-L container of cold water, what woul
gayaneshka [121]

Answer:

10°C  

Explanation:

Heat gain by water = Heat lost by the slice of pizza

Thus,    

m_{water}\times C_{water}\times \Delta T=Q

<u>For water:  </u>

Volume = 50.0 L

Density of water= 1 kg/L  

So, mass of the water:  

Mass\ of\ water=Density \times {Volume\ of\ water}  

Mass\ of\ water=1 kg/L \times {50.0\ L}  

Mass of water  = 50 kg

Specific heat of water = 1 kcal/kg°C  

ΔT = ?

For slice of pizza:  

Q = 500 kcal

So,

50\times 1\times \Delta T=500  

ΔT = 10°C  

Increase in temperature = 10°C  

3 0
2 years ago
The average air tempature in an area over a long period of time is called
labwork [276]
Climate change or it could just be Climate,
Hopefully that helps ❤
3 0
3 years ago
Read 2 more answers
Where is neon found in earth? South America? North America?
givi [52]
Neon is usually found in the form of a gas with molecules consisting of a single Neon atom. Neon is a rare gas that is found in the Earth's<span> atmosphere at 1 part in 65,000. I'm not 100% sure but i am pretty sure it is found in both places but more is in South America. Just incase, wait for someone else to answer.</span>
8 0
3 years ago
Will give brainliest
Dafna1 [17]

sorry i know this:

4. 2 methyl 2 heptene

3 0
2 years ago
Other questions:
  • Which element from this portion of the table chemically reacts in a way similar to the way the element chlorine (Cl) reacts? (1)
    13·2 answers
  • Which title is most appropriate for this table? ANSWERS: Uses of Functional Groups Involving Oxygen Natural Sources of Functiona
    7·1 answer
  • Which element is a semiconductor
    15·2 answers
  • HELP ASAP
    7·2 answers
  • What kind of solid often has the highest melting points?
    11·2 answers
  • If you have 10g of Fe and 20 g of oxygen, how much product will you have?
    7·1 answer
  • How do scientists test for a substance’s flammability in a substance
    12·1 answer
  • What volume of a 15.0% by mass NaOH solution, which has a density of 1.116 g/mL , should be used to make 5.05 L of an NaOH solut
    12·1 answer
  • Explain when the term vapor should be used to describe the gas phase.
    8·1 answer
  • ______ contributes to the nitrogen cycle by removing nitrogen from the air and converting it into a form that is usable by plant
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!