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
ohaa [14]
3 years ago
9

A cup of coffee has 71 mL of coffee and 127 mL of water. What is the percent volume of the coffee solution?

Chemistry
1 answer:
Anna [14]3 years ago
3 0

Answer:

35.9%

Explanation:

The percent volume of the coffee solution can be calculated as follows:

% volume of coffee solution = volume of coffee/total volume of coffee solution × 100

According to this question, a cup of coffee has 71 mL of coffee and 127 mL of water. This means that, the total volume of coffee solution is;

71mL + 127mL = 198mL

% volume = 71/198 × 100

= 0.359 × 100

Percent volume of coffee solution = 35.9%

You might be interested in
Calculate the number of molecules in 6.00 moles h2s?.
LenKa [72]
To calculate the number of molecules in <span>6.00 moles of hydrogen sulfide, H2S, the equivalence factor used is Avogadro's number equal to (6.022 x 10^23 molecules/mole). The answer is 6</span>.00 moles of hydrogen sulfide * <span>(6.022 x 10^23 molecules/mole) equal to 3.61 x10^24 molecules.</span>
5 0
3 years ago
Read 2 more answers
How much does the universe(galaxy) weigh?
AfilCa [17]

Answer:

(before researching)it weighs a positive infinity ∞

Explanation:

(after researching)Our galaxy weighs in at around 10^42 kilograms and the entire visible universe reaches something like 10^53. You can try to convert those figures to something a little more familiar, such as the weight of a blue whale, by subtracting 5 from any of those exponents.

hope this helps have a great day also brainly would be very much appreciated

and here's a meme

7 0
3 years ago
Read 2 more answers
As the thermal energy of matter increases, its particles usually spread out, causing
sveta [45]

Answer:

As the thermal energy of matter increases, its particles usually spread out, causing the substance to expand.

Explanation:

<em> i have a book about this stuff</em>

8 0
3 years ago
Which is the correct chemical symbol for this atom of helium?
Tomtit [17]
H........................................
6 0
3 years ago
Describe how water molecules interact with sodium chloride molecules in order for water to dissolve salt.
Phantasy [73]

Answer:

Sodium chloride is an ionic salt that completely dissociates in water.

Explanation:

Sodium chloride in water dissociates according to the equation.

NaCl (aq) → Na + (aq) + Cl- (aq)

While water stays in balance according to the equation

2H2O (l) ⇄ H3O+(aq)  +  OH-(aq).

By dissociating the solute in the solvent, the water molecules pick up the sodium cations as well as the chloride anions to break the bonds in the salt crystals and thus produce the dissolution

If the ions are analyzed separately, we see that Na + interacts with water, so it would be producing sodium hydroxide, releasing protons.  

If the reaction goes in the sense of products, the Na + would increase the concentration of [H +], however being a neutral salt the pH does not vary from 7, so the reaction would never go in the sense of products, but only reagents. That's why as the sodium hydroxide is a strong base, it only promotes the formation of water and the cation.

Na+  +  H2O  ←  NaOH  +  H+

The same situation occurs with chloride, since no matter how much you want to form hydrochloric acid, it dissociates by promoting the formation of water plus the corresponding anion. Na + and Cl- act as too weak conjugate acid and base, so the reaction would never go in the direction of products

Cl-  +  H2O  ←  HCl  +  OH-

3 0
4 years ago
Other questions:
  • What is the relationship between a problem statement and the hypothesis?
    11·1 answer
  • COMPARE AND CONTRAST <br> PROPANE AND HEXANE ...?
    15·1 answer
  • HALP PLZ 50 points brainlest and thanks if u halp
    6·2 answers
  • A sample of gas occupies 280 mL when the pressure is 560.00 mm Hg . If the temperature remains constant , what is the new pressu
    5·1 answer
  • Why was creating a Beer's Law plot necessary? Choose the best answer. Group of answer choices in order to determine the amount o
    14·1 answer
  • Predict the products of the thermal decomposition of strontium nitrate and show the reaction as a word equation.
    13·1 answer
  • What science govern in nanostructure?​
    11·2 answers
  • All the following are true EXCEPT
    10·1 answer
  • Variable changed by the scientists what is being tested
    13·2 answers
  • Which temperature scale has the highest value for the boiling point of water?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!