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
Simplify:<br><img src="https://tex.z-dn.net/?f=2%20%5Cfrac%7B1%7D%7B4%7D%283.5%29%20" id="TexFormula1" title="2 \frac{1}{4}(3.5)
V125BC [204]

9514 1404 393

Answer:

  7 7/8

Step-by-step explanation:

There are several ways to get there.

  2.25×3.5 = 7.875 = 7 7/8

  (2 1/4)(3 1/2) = (9/4)(7/2) = 63/8 = 7 7/8

  (2 1/4)(3.5) = 2(3.5) +(1/4)(3.5) = 7 + (2·3.5)/(2·4) = 7 +7/8 = 7 7/8

A typical graphing calculator will let you enter this problem directly, giving you a result either as a decimal, improper fraction, or a mixed number.

4 0
2 years ago
What is the value of x
bulgar [2K]

x equals negative 8 that's it

5 0
3 years ago
Read 2 more answers
What is trollface quest
natima [27]

trollface quest is a mobile game.

6 0
3 years ago
Read 2 more answers
I have a math project i need help with!?!?
Vlada [557]
633,360,000 divided by 10,000= 63,360inches per mile
Chevy- 63,360 divided by 113.04= 560.5 times 10,000=5,605,000 rotations per mile
Bicyle- 63,360 divieded by 94.2= 672.6 times 10,000=6,726,000
Motorcycle- 63,360 divided by 100.48=630.6 times 10,000= 6,306,000


5 0
3 years ago
PLEASE HELP WILL GIVE BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLI
Murrr4er [49]
21 is scale factor 6.
6 0
3 years ago
Read 2 more answers
Other questions:
  • The length of a rectangle is 1/4 of the width the perimeter is 10 inches what is the width?
    11·1 answer
  • Find the zeros of the following polynomial.<br> 3x3 + 9x2 - 12x
    6·2 answers
  • Four times the sum of a number and 3 is 5 times that number
    15·1 answer
  • Find the inverse of the following f(x)=-3x^2+3 X&gt;0
    13·1 answer
  • Karen began her tennis game at 9:30. She played for two and a half hours.What time did she finish?
    14·1 answer
  • Gradpoint-What is the value of y?<br><br>25<br><br>35<br><br>50<br><br>100
    7·1 answer
  • 3(x+5)&lt;=2(3-x)-1 solve the inequality
    8·1 answer
  • Forty-three girls went camping. The girls were able to choose to participate in karate and swimming. Twenty-one girls went swimm
    9·2 answers
  • Cos 55°<br> 0.9735<br> True or false
    15·1 answer
  • Surface area of a prism please help its my last day 120 points
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!