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
Musya8 [376]
3 years ago
13

what is the concentration (in %v/v)) of the following solutions? a. 25 mL of ethanol is diluted to a volume of 150 mL with water

.
Chemistry
1 answer:
fenix001 [56]3 years ago
8 0
The symbol %v/v means percent by volume. Assuming there is no volume effects when these substances are mixed, we calculate as follows:

% v/v = (25 mL ethanol / 25 mL + 150 mL ) x 100
%v/v = 14.29 mL ethanol / mL solution

Hope this answers the question.
You might be interested in
What Resources do organisms compete over?
Alex787 [66]
Siekejekekekskkensndjdjd
7 0
3 years ago
A student mixes two solutions A and B. A is blue colored and B is yellow colored. The mixture produces has a green color. A ther
Svet_ta [14]

Answer:

A

Explanation:

No temperature change was observed, hence the change is neither exothermic nor endothermic. Hence the answer is A.

4 0
3 years ago
Why does water have a much higher boiling point than methane even though water (H20) and methane (CH4) molecules are approximate
PSYCHO15rus [73]

Answer:

Water has a higher boiling point because the hydrogen bonds that form water molecules are stronger than the Van der Waals interactions among methane molecules, therefor more energy must be provided in order to break the hydrogen bonds and allow the water molecules to escape the liquid state.

Explanation:

5 0
3 years ago
Read 2 more answers
4. Which of these metals is a pure element? Brass Bronze Silver Steel 5. C is the correct chemical symbol for ....... Calcium Ca
Gala2k [10]

Answer:

4) Silver

5) Carbon

6) Oxygen

3 0
3 years ago
Read 2 more answers
1. Freon (CCl2F2) is commonly used in refrigerators and air conditioners as a coolant. How many grams of fluorine are there in t
Georgia [21]

Answer:

285g of fluorine

Explanation:

To solve this problem we need to find the mass of Freon in grams. Then, with its molar mass we can find moles of freon and, as 1 mole of Freon, CCl₂F₂, contains 2 moles of fluorine, we can find moles of fluorine and its mass:

<em>Mass Freon:</em>

<em>2.00lbs * (454g / 1lb) = </em>908g of Freon

<em>Moles freon -Molar mass: 120.91g/mol- and moles of fluorine:</em>

908g of Freon * (1mol / 120.91g) =

7.5 moles of freon * (2moles Fluorine / mole Freon): 15 moles of fluorine

<em>Mass fluorine -Atomic mass: 19g/mol-:</em>

15 moles F * (19g / mol) =

<h3>285g of fluorine</h3>

3 0
3 years ago
Other questions:
  • What does temperature measure?
    15·2 answers
  • Lithium and nitrogen react in a combination reaction to produce lithium nitride:6Li (s) + N2 (g) â 2Li3N (s)In a particular expe
    15·1 answer
  • Please help 50 points A balanced chemical equation has _________ number of atoms for each element on both sides of the equation.
    8·1 answer
  • The combustion of Methane produces energy. Where does this energy come from
    13·2 answers
  • i'm reasking this, i need help with this and it's due today. the answer isn't 30,240 minutes, it's the blanks i need filled in :
    5·1 answer
  • How do I balance this chemical reaction ?
    11·2 answers
  • Research some ways in which scientists and engineers have harnessed and currently use the energy in fossil fuels to benefit soci
    5·1 answer
  • One canned juice drink is 15% orange juice; another is 5% orange juice. How many liters of each should be mixed together in orde
    10·1 answer
  • How many liters of volume is one mole of gas at standard temperature and<br> pressure?
    12·1 answer
  • Which of an Adams electrons are involved in chemical reactions
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!