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
CaHeK987 [17]
2 years ago
13

How many molecules of water are in 0.578 moles of water?

Chemistry
1 answer:
Elena L [17]2 years ago
3 0
1 mole contains 6.02 * 10^23 molecules
0.578 moles of water contains 0.578 * 6.02 * 10^23 molecules
You might be interested in
Calculate the molarity of the solution.
olga nikolaevna [1]

Answer:

ans. is 0.05

Explanation:

molarity=(mole of solute)/(litre of solution)

4 0
3 years ago
Read 2 more answers
Sugar dissolving in tea is it chemical or physical change?​
coldgirl [10]

Answer:

it is a physical change because when you heat up again a solution of sugar and tea you gonna obtain again sugar

5 0
3 years ago
Why do substances with weak intermolecular forces form solids at low melting points?
Advocard [28]
To make any substance solid, molecules must come very close to each other. Substances with weak intermolecular forces have weak bonding. Hence to make their molecules come close to each other, we must provide low temperature. 
7 0
3 years ago
Benzene is a starting material in the synthesis of nylon fibers and polystyrene (styrofoam). Its specific heat capacity is 1.74
Leona [35]

Answer:

D

Explanation:

The amount of energy released or absorbed is equal the product of the mass, the specific heat capacity and the temperature change. The temperature change being the difference between the final and initial temperature.

Q = mc∆T

Q = heat energy (Joules, J) m = mass of a substance (kg) c = specific heat (units J/g∙K)

∆ is a symbol meaning "the change in" ∆T = change in temperature (Kelvins, K)

From the data provided in the question, we can deduce that:

Q = 16.7KJ = 16,700J

m = 225g

c = 1.74J/g.k

For the temperature, let the final temperature be f. This means our ∆T = f - 20

16,700 = 225 * 1.74 * (f - 20)

16700 = 391.5 (f - 20)

f - 20 = 16700/391.5

f - 20 = 42.7

f = 20 + 42.7 = 62.7

5 0
2 years ago
What is another name for the representative elements?
jeka94

Answer:

Group A elements or the main group

Another name for the representative elements are  the Group A elements or the main group elements

Explanation:

6 0
3 years ago
Read 2 more answers
Other questions:
  • What is the independent variable in the graph?
    8·1 answer
  • Help please now im failing bad
    11·1 answer
  • PLEASE HELP 15 POINTS ONE QUESTION
    15·1 answer
  • What is the Hsol for KBr k+ + br- ? The lattice energy is –679 kJ, the enthalpy of hydration for is –336 kJ/mol, and the enthalp
    5·1 answer
  • How many sulfur atoms are in H2SO4?
    9·1 answer
  • A gas has a pressure of 1.00 atm and a volume of 500 mL. When its pressure is doubled, at constant temperature, to 2.00 atm, its
    14·1 answer
  • Raising or lowering temperature. What happens to the pressure? Is this a direct or indirect relationship?
    9·1 answer
  • 6) Determine la concentración de una solución que ha sido preparada añadiendo 80cc de agua a 320cc de solución alcohólica al 20%
    10·1 answer
  • Pls i need the correct answer auto report when you're not sure to your answer or its wrong
    12·1 answer
  • Compare protons neutrons and electrons to a family or a business​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!