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
notsponge [240]
2 years ago
9

How much energy is required to evaporate grams of water?.

Chemistry
2 answers:
ANEK [815]2 years ago
7 0

Answer:

100 °C, 540 calories per gram of water

Explanation:

gregori [183]2 years ago
5 0

Answer:

energy known as the latent heat of vaporization is required to break the hydrogen bonds. At 100 °C, 540 calories per gram of water are needed to convert one gram of liquid water to one gram of water vapour under normal pressure.

Explanation:energy known as the latent heat of vaporization is required to break the hydrogen bonds. At 100 °C, 540 calories per gram of water are needed to convert one gram of liquid water to one gram of water vapour under normal pressure.

You might be interested in
Explain how plate tectonics are responsible for where we find some of our natural resources.
Mekhanik [1.2K]
At divergent boundaries, plates separate, forming a narrow rift valley. Here, geysers spurt super-heated water, and magma, or molten rock, rises from the mantle and solidifies into basalt, forming new crust. Thus, at divergent boundaries, oceanic crust is created.
6 0
3 years ago
Read 2 more answers
Adding luminol to water creates a physical or chemical change ​
faust18 [17]
Answer: chemical

not 100% sure
7 0
3 years ago
Read 2 more answers
(a) Given that Ka for acetic acid is 1.8 X 10^-5 and that for hypochlorous acid is 3.0 X 10^-8, which is the stronger acid? (b)
Gala2k [10]

Answer:

HOAc is stronger acid than HClO

ClO⁻ is stronger conjugate base than OAc⁻

Kb(OAc⁻) = 5.5 x 10⁻¹⁰

Kb(ClO⁻) = 3.3 x 10⁻⁷

Explanation:

Assume 0.10M HOAc => H⁺ + OAc⁻  with Ka = 1.8 x 10⁻⁵

=> [H⁺] = √Ka·[Acid] =√(1.8 x 10⁻⁵)(0.10) M = 1.3 x 10⁻³M H⁺

Assume 0.10M HClO => H⁺ + ClO⁻ with Ka = 3 x 10⁻⁸

=> [H⁺] = √(3 x 10⁻⁸)(0.10)M = 5.47 x 10⁻⁵M H⁺

HOAc delivers more H⁺ than HClO and is more acidic.

Kb = Kw/Ka, Kw = 1 x 10⁻¹⁴

Kb(OAc⁻) = 5.5 x 10⁻¹⁰

Kb(ClO⁻) = 3.3 x 10⁻⁷

4 0
3 years ago
How do atoms and molecules of elements and compounds combine in chemical reactions?
solong [7]

Answer:

A compound is a unique substance that forms when two or more elements combine chemically. Compounds form as a result of chemical reactions. The elements in compounds are held together by chemical bonds. A chemical bond is a force of attraction between atoms or ions that share or transfer valence electrons

8 0
2 years ago
Read 2 more answers
If an object has two forces acting on it how can the next force equal 0
Flura [38]

If the forces are equal and in opposite directions, the net force will equal zero.

Consider a tug-of-war team. If they are pulling with equal forces against each other, the red cloth on the rope will not move.

<em>F = ma </em>

The cloth is not moving, so <em>a = </em>0 and the net force <em>F = </em>0.

6 0
3 years ago
Other questions:
  • As the block slides down the ramp, what type of energy conversion is occurring?
    15·1 answer
  • How many moles are in 2.56 of Hg​
    11·1 answer
  • Methyl salicylate, C8H8O3, the odorous constituent of oil of wintergreen, has a vapour pressure of 1.00 torr at 54.3oC and 10.0
    8·1 answer
  • Which event would be impossible to explain by using John Dalton’s model of the atom?
    12·2 answers
  • What information can a foliated metamorphic rock provide you about the conditions under which it formed?
    5·1 answer
  • Choose any metal atom from Group 1A, 2A, or 3A. What charge will it adopt when it ionizes?​
    7·1 answer
  • Which of the following statements is true? Running an electric current through a magnet can create a magnetic field, Electrons a
    11·1 answer
  • What is the mass of 0.28 mole of iron?
    7·1 answer
  • Boyle's law only works when a gas is kept at a constant temperature. Experimentally this is very tricky as changes in pressure o
    12·1 answer
  • (b) If 45.0% of the ethanol that did not produce the ether reacts by the side reaction, what mass (g) of ethylene is produced?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!