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
(04.02 LC) Based on the cell theory, which of the following is true?
prohojiy [21]

Answer:

c

Explanation:

there are billions of cells in living things. We are made out of millions of cells

4 0
3 years ago
Clouds are made up of tiny droplets of water. Which two spheres are clouds a
MaRussiya [10]
C & D, clouds are apart of the Hydro and Atmosphere!
5 0
3 years ago
Precipitation reactions always occur when two aqueous solutions are mixed (T/F)
Studentka2010 [4]

Answer: The given statement is false.

Explanation:

Precipitation reaction is defined as the chemical reaction in which two aqueous solution upon mixing together results in the formation of an insoluble solid.

For example, NaCl(aq) + AgNO_{3} \rightarrow NaNO_{3}(aq) + AgCl(s)

Here AgCl is present in solid state so, it is the precipitate.

But it is not necessarily true that two aqueous solutions will always result in the formation of a precipitate.

For example, NaCl(aq) + KNO_{3}(aq) \rightarrow KCl(aq) + NaNO_{3}(aq)

Hence, we can conclude that the statement precipitation reactions always occur when two aqueous solutions are mixed, is false.

7 0
3 years ago
Explain why a solution has a lower boiling point than the pure solvent
KonstantinChe [14]
Because the intention is to boil the solution, the purpose of the solvent is to dissolve so it has a higher boiling point so ensure it stays in liquid form and doesn't evaporate into a gas

also, a pure solvent is made of 1 substance so it has 1 boiling point and the solution must evaporate/boil first
7 0
4 years ago
Convert 76.78 g of CO2 to a volume.
Jlenok [28]
Brainest please thank you
5 0
3 years ago
Other questions:
  • 2HF(g)<-----> H2(g)+F2(g)
    9·1 answer
  • Lipids with high polyunsaturatd fatty acid content are ____________ at room temperature.
    11·1 answer
  • Which of the following of the following is the same for both hydrogen and potassium ?
    9·1 answer
  • 14 POINTS
    10·2 answers
  • Write a letter to alfred Wegener supporting his theory of continental drift discuss the theory of plate tectonics fossil and roc
    15·1 answer
  • Avogadro's law states that the _____ of a gas is directly proportional to the _____ of the gas when _____ stay the same
    9·1 answer
  • 1
    5·1 answer
  • What is the biggest difference between thermal energy and temperature?
    15·1 answer
  • Look carefully at the list of objects and order
    6·1 answer
  • Mass of a man is 80kg. Assuming that a human body Contains 70% water, calculate the total no. of water molecules present in the
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!