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
aev [14]
2 years ago
13

How many grams of potassium chloride are required to make 250 ml of a 0.75 m kcl solution?

Chemistry
1 answer:
DedPeter [7]2 years ago
7 0

Answer:

The solution would need 13.9 g of KCl

Explanation:

0.75 m, means molal concentration

0.75 moles in 1 kg of solvent.

Let's think as an aqueous solution.

250 mL = 250 g, cause water density (1g/mL)

1000 g have 0.75 moles of solute

250 g will have (0.75 . 250)/1000 = 0.1875 moles of KCl

Let's convert that moles in mass (mol . molar mass)

0.1875 m . 74.55 g/m = 13.9 g

You might be interested in
What do the 14th Amendment and the Civil Rights Act of 1866 have in common?A. They were ways Congress sought to guarantee blacks
ehidna [41]
A. They were ways Congress sought to guarantee blacks the full rights of citizenship.
8 0
2 years ago
Can someone help me... (just give me the answers please
ExtremeBDS [4]
Chlorine formula is CI2
7 0
2 years ago
Read 2 more answers
Nuclear fission reactions can produce different radioisotopes. One of these radioisotopes
hichkok12 [17]
Based on the information provided,

The evidence that this nuclear reaction reaction represent transmutation is it formed different elements

hope this helps
7 0
3 years ago
The image below shows how wolves and dogs compare to some other animals in the levels of classification.
Mariana [72]
Insects and dogs are both in the Animalia classification.
8 0
3 years ago
Which of these is a significant limitation of using wind power for energy?
Yuliya22 [10]
The answer is D all of the above because I just got done with this question
7 0
2 years ago
Other questions:
  • Help me <br> Which rock is NOT sedimentary?<br> A.shale<br> B.schist<br> C.limestone<br> D.sandstone
    10·2 answers
  • Which of the following is a property of both solids and liquids?
    8·2 answers
  • Select the classification for the following reaction. 2Na(s) + 2H2O(l) → 2NaOH(aq) + H2(g) a. precipitation b. acid-base c. redo
    14·1 answer
  • Plzzz help I need the answers
    6·1 answer
  • Electron affinity is the measure of the attraction of an electron toward an isolated gaseous atom. When an electron is added to
    15·1 answer
  • Batteries involve the flow of electricity from one metal to another. What happens to these metals to cause the batteries to, eve
    11·1 answer
  • Jeffry was wondering why when he made breakfast, that after he was done cooking, the mass of everything he used was not the same
    6·1 answer
  • Can you make 10
    9·2 answers
  • What gas makes up the majority of the Earth's atmosphere?
    15·1 answer
  • To find time, t, the age of the universe, you must first isolate the variable t. Rewrite the velocity equation v = d / t so that
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!