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
san4es73 [151]
4 years ago
15

If 42.9 mL of rubbing alcohol is

Chemistry
1 answer:
lisov135 [29]4 years ago
3 0

Answer:

19.8 %

Explanation:

V% = ( V of solute \ 100 ml  of solution ) ×100%  =

   the volume of the solute in 100ml solition = 20 ml

  42.9 ml of solute ----------215 ml solution

     ×                     -----------  100 ml solution

42.6 ×   100 ml  ÷ 215 ml

= 19.8 ml of solute

the V% =   (19.8 ÷ 100)  ×100% = 19.8%

You might be interested in
Please help! If a forensic chemist discovers evidence through examination which would prove a person guilty of a crime, why then
Bogdan [553]

Explanation: You cannot be convicted of a crime without evidence. You cannot be convicted of a state crime. You cannot be convicted of a federal crime. If there is no evidence against you, under the law, it simply is not possible for the prosecutor's office to obtain a conviction at trial. So, when you do have evidence it is really impossible to not get convicted unless the judge truly believes your side of the story and declares you not guilty.

I hope this helped :) If not i'm sorry!

7 0
3 years ago
Which of the following has the lowest entropy?
Valentin [98]
I believe that the answer is B:  H2O(s) because is the makeup of water also known as one hydrogen and two oxygen. So water as more entropy and the s stands for sol fore i think wich means it contains the most entropy.
5 0
3 years ago
Read 2 more answers
Why do we need to balance chemical equations?
Mrrafil [7]
So we know the number of moles of each compound. If we need to know the concentration we must know the number of moles that the compounds react with...

8 0
4 years ago
Read 2 more answers
What causes the Moon to be illuminated?
alexgriva [62]

Answer:

reflection

Explanation:

the moon reflects sunlight causing it to look brighter. the sun is not a medium as light doesn't require a. medium to travel. nor is a moon concave...

hope it helps

8 0
2 years ago
Iron sulfite has the formula?
Mademuasel [1]
Its FeSO3 or iron(iii)sulfite = Fe2(SO3)3
7 0
4 years ago
Other questions:
  • Complex molecules are formed by the bond formation between monomers . Which process is being referred to in this statement? A.)
    9·2 answers
  • You are looking at an atom that has the atomic number of 7 and an atomic mass of 16. how many neutrons are there in this atom?
    13·1 answer
  • CAN SOMEONE HELP ME ON SCIENCE?!!! I NEED HELP. ITS JUST TRUE OR FALSE. I DONT UNDERSTAND. PLZ HELP ME!! TODAY. 1-6. I AINT CHEA
    9·1 answer
  • Why are different units of measurement used for distances in space
    5·1 answer
  • A computer monitor uses 200 W of power. How much energy does it use in<br> 10 seconds?
    6·1 answer
  • Plzz help mee asapp dmxkxksms
    6·1 answer
  • What is the energy of one photon of red light that has a wavelength of 678 nm?
    13·1 answer
  • A man of 450N covers an area of 0.015m² standing on his feet. Calculate the pressure exerted by his feet on the ground.​
    7·1 answer
  • Certain elements in the periodic table are referred to as inert or noble gases. What is the reason for this?​
    12·1 answer
  • Write the balanced equation fr this chemical reaction _Mg + _O2 -&gt; _MgO​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!