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
stiv31 [10]
3 years ago
15

What is the final concentration if a saline solution consisting of 20% NaCl is diluted using a 1/4 solution?

Mathematics
1 answer:
vodomira [7]3 years ago
6 0

Answer: C.V=C1.V1 +C2.V2

Step-by-step explanation: C=(C1V1 + C2V2)/V -> C=(20%.V+25%V)/2V-> C=22,5%

You might be interested in
(Inscribed Angles)
Alik [6]

Answer:

(D) 30 degrees

Step-by-step explanation:

An inscribed angle is an angle formed by two chords in a circle which have a common endpoint.

<u>Theorem(Inscribed Angles Conjecture I): </u>In a circle, the measure of an inscribed angle is half the measure of the central angle with the same intercepted arc.

By the theorem above and from the attached diagram,

Inscribed Angle p =Half of 60 degrees

\angle p=0.5 X 60^\circ\\p=30^\circ

<u>The correct option is D.</u>

4 0
2 years ago
5[[w]^[9]]×2y×4[[y]^[8]][[w]^[9]]
Nikitich [7]
24v9w9 + 28v5w7y8


Also sub to Stariceie E
7 0
3 years ago
Express 0.2631 correct to three decimal places
Ilya [14]

Answer:

0.263.

Step-by-step explanation:

The 4th decimal place is 1 so the third decimal places remains the same.

4 0
2 years ago
Read 2 more answers
Guys please please help me I’m begging u guys lol I need help please
Llana [10]

Answer:

What do you need help with?!?XD

Step-by-step explanation:


4 0
3 years ago
An angle measures 28º less than the measure of its complementary angle. What is the measure of
GuDViN [60]

Answer:

Let the angle=x

So the other angle will be = y

X-28 +y=90

5 0
2 years ago
Other questions:
  • Joshua went to a movie that started at 1:45. The movie ended at 3:30. how long was the movie?
    5·1 answer
  • the alabama river is 729 miles. if 1 mile equals 1.61 kilometers, find the length of the river to the nearest whole kilometer. (
    9·1 answer
  • Evaluate.<br> 1500(0.04)(3) I don’t understand this
    11·1 answer
  • 7.For tire size P225/45R17, give the following: Width(mm): _______________ Aspect Ratio (%): _______________ Height (in.): _____
    8·1 answer
  • PLEASE HELP ASAP!!!!
    15·1 answer
  • How many hundred thousands equal 80,000 tens
    12·2 answers
  • I need help grades due tomorrow in a little
    6·2 answers
  • Type the correct answer in each box.
    10·1 answer
  • Which of these cylinders has the same volume as one with a radius of 4 ft and a height of 9 ft?
    12·1 answer
  • Name the angle pair: ∠5 and ∠1
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!