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
Leya [2.2K]
3 years ago
5

If you have 100.0ml of a 30.0% aqueous solution of ethanol, what volume of water is in the solution?

Chemistry
1 answer:
uranmaximum [27]3 years ago
4 0
Solutions containing two substances in the aqueous phase are usually described in volume percentages. Therefore, if a solution has 30% of ethanol, then it has 30% ethanol by volume. The remaining volume is of water, which will be 70%. Calculating:
70% x 100
= 70 ml of water in the solution
You might be interested in
Suggest a procedure for separating iron shavings from sawdust. Explain why this procedure would work.
Mrac [35]

Answer:

Magnetic separation

Sawdust is a non-magnetic material whereas iron shavings are magnetic. When a magnet is brought near a mixture of iron shavings and sawdust, the iron shavings will be attracted to the magnet while the sawdust will not. Thus, the iron shavings will be separated from the sawdust.

Explanation:

Separation techniques makes use of the differences in the properties of components of mixtures to separate theses components, one from another.

In a moxturemof iron shavings and sawdust, a suitable separation technique would be the use of magnetic separation.

The use of this separation technique is abasednonnthe principle that when a magnetnis brought near to a mixture containing magnetic and non-magnetic materials, the magnetic materials will be separated from the non-magnetic materials due to their attraction to the magnet. Sawdust is a non-magnetic material whereas iron shavings are magnetic. When a magnet is brought near a mixture of iron shavings and sawdust, the iron shavings will be attracted to the magnet while the sawdust will not. Thus, the iron shavings will be separated from the sawdust.

5 0
3 years ago
Gas laws mad question under it​
ozzi

Answer:

what are you asking tho?

Explanation:

Thx for the Free points tho.

5 0
3 years ago
Which part of modern atomic theory was first developed by John Dalton?
Nuetrik [128]
C. one of the discoveries he made which gave him his fame in the scientific community was that the atom could not be destroyed
3 0
3 years ago
Which of the following is a testable hypotheses?
Solnce55 [7]

Answer:

The awser is D.

3 0
3 years ago
2Al (s) + 3Cl2 (g) --> 2AlCl3 (s) (balanced)
Triss [41]

Answer:

Percent yield = 65.2 %

Explanation:

The reaction determines this:

2 moles of Al react to 3 moles of chlorine gas in order to produce 2 mol of aluminum chloride.

We determine the moles of chlorine:

52 g . 1mol /70.9g = 0.733 moles of Cl₂

3 moles of gas can produce 2 moles of salt

Then, our 0.733 moles may produce (0.733 . 2) / 3 = 0.489 moles of AlCl₃

We convert moles to mass to predict the 100 % yield

0.489 mol . 133.3 g /mol = 65.19 g

Percent yield = (Yield produced / 100 % yield) . 100

Percent yield = (42.5 g / 65.19g) . 100 = 65.2 %

3 0
3 years ago
Other questions:
  • Addition of 50. J to a 10.0-g sample of a metal will cause the temperature of a metal to rise from 25ºC to 35ºC. The specific he
    5·1 answer
  • Why doesn’t vegetable oil stay dissolved in vinegar to make a salad dressing?
    9·2 answers
  • What is the chemical name of the compound KCN?​
    12·1 answer
  • In which direction does the electric field point at a position directly south of a positive charge?
    12·2 answers
  • Pleasee helppppp I have a test!
    9·1 answer
  • What is the weight of a person on earth? The mass of the person is 71kg
    6·1 answer
  • The_______ and _____ are the main systems that move fluid throughout the body.
    8·1 answer
  • During a tug of war competition neither team was able to gain an advantage which of the following explains the force is this sit
    12·1 answer
  • Cho 13,5g nhôm tác dụng với dd HCl dư.Tính khí H2 (đktc) thu được
    12·1 answer
  • Lead(II) chromate, PbCrO4, is a yellow paint pigment (called chrome yellow) prepared by a precipitation reaction. In a preparati
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!