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
Elena-2011 [213]
3 years ago
9

Calculate the amount of heat released when 27.0 g H2O is cooled from a liquid at 314 K to a solid at 263 K. The melting point of

H2O is 273 K. Other useful information about water is listed below.
Cp,liquid = 4.184 J/(g•K)

Cp,solid = 2.093 J/(g•K)

ΔHfusion = 40.7 kJ/mol
Chemistry
2 answers:
Liula [17]3 years ago
7 0

Answer:

Cool liquid from 314 K to 273 K, freeze liquid at 273 K, and cool solid to 263 K.

Explanation:

answer on edg

lubasha [3.4K]3 years ago
5 0
Cool liquid from 314 K to 273 K, freeze liquid at 273 K, and cool solid to 263 K.
You might be interested in
A meander is best described as a
Art [367]
A meander is best described as a bend or curve in a stream channel.
3 0
3 years ago
6. What's the structure of PF? Is it polar or non-polar?
charle [14.2K]

1234567891011121314151617181920

4 0
3 years ago
true or false electrical energy is the amount of energy that contains an object due to the kinetic energy?​
yuradex [85]

The answer to this question would be true.

4 0
3 years ago
Calculate the silver ion concentration in a saturated solution of silver(i) sulfate (ksp = 1.4 × 10–5).
deff fn [24]

Answer:

= 0.030 M

Explanation:

We can take x to be the concentration in mol/L of Ag2SO4 that dissolves  

Therefore;  concentration of  Ag+ is 2x mol/L and that of SO4^2- x mol/L.

Ksp = 1.4 x 10^-5

Ksp = [Ag+]^2 [SO42-]

      = (2x)^2(x)

      = 4x^3  

Thus;

4x^3  = 1.4 x 10^-5

         = 0.015 M

molar solubility = 0.015 M

But;

[Ag+]= 2x

Hence; silver ion concentration is

= 2 x 0.015 M

= 0.030 M

6 0
3 years ago
Explain how to draw the electron-dot diagram for oxygen.
AlexFokin [52]

The electron dot diagram for the oxygen atom shows six electrons around the symbol of the atom.

<h3>What is the electron dot diagram?</h3>

The electron dot diagram is the diagram of atoms of elements showing only the valence electrons present in the atom represented with dots.

The electron dot diagram for the oxygen atom is drawn as follows:

  • The number of valence electrons in oxygen atom is determined; valence electrons = 6
  • The symbol for the oxygen atom is written
  • The valence electrons are shown as dots around the symbol of the element.

In conclusion, the electron dot diagram uses dots around the symbol of an atom to show the valence electrons in the atom.

Learn more about electron dot diagram at: brainly.com/question/5835591

#SPJ1

7 0
1 year ago
Other questions:
  • a particle accelerator is used to accelerate particles, at high speeds until the particles fuse together and create a new elemen
    14·1 answer
  • Unlike third-world and developing nations, the U.S. has no incidence of hungry or malnourished people.
    7·1 answer
  • What is the effect of temperature on molarity?
    10·1 answer
  • A chemistry teacher has a 560-cm length of magnesium ribbon. For a class experiment, each student requires an 8.5-cm length of t
    7·1 answer
  • The molar mass of a gas is 56 grams. What is its density at STP in grams per liter?
    13·1 answer
  • What are mitochondria, and<br> why are they an important<br> part of cells?
    13·1 answer
  • Water is known as the "universal solvent." What is the best synonym for "solvent?"
    7·1 answer
  • Compared to compounds with network structures, compounds arranged in molecules (covalent bonds) have ____________ melting points
    12·1 answer
  • True or false?
    15·2 answers
  • What is the maximum amount of ammonia that can be produced when 0.35 mol Nz reacts with 0.90 mol Hz?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!