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Alex Ar [27]
3 years ago
12

How many molecules are present in 4.5 moles of H2O?

Chemistry
1 answer:
Gekata [30.6K]3 years ago
6 0

Answer:

Mole of the H2O = 4.5

Number of molecules =4.5 multipled by avogadro's number.

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determine the strongest intermolecular force in pure samples of each of the following: a. h2o b. cf4 c. co2 d. ph3
Virty [35]

The strongest intermolecular force is the hydrogen bond in water (H2O).

What is intermolecular force?
Intermolecular forces
are those that develop between the molecules of a substance and can cause them to attract or repel one another. The type of intermolecular force that is present in the matter determines all of the material's physical and chemical properties.

Interactions between dipoles
Involvements of Ion-Dipoles
Dipole Interactions Induced by Ions
DID Interaction: Dipole Induced DID
London Forces or Dispersion Forces
These five intermolecular force types are listed above.


The intermolecular forces were in this order:
The strongest force is ion-dipole force.
the hydrogen bond
Force between dipoles
the least powerful is the dispersion force.
The strongest intermolecular force is therefore the hydrogen bond in H2O.

To know more about Intermolecular force, follow the link below
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1 year ago
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1. Land-dwelling creatures depend on the the water cycle to ___________ fresh water from its salt solution in the Earth's oceans
Novosadov [1.4K]
1 is evaporate and 2 is precipitate
3 0
2 years ago
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What do hydroelectric plants use to turn a turbine when producing electrical energy?
oksian1 [2.3K]
A. water
the word hydro means water
7 0
3 years ago
If a 0.10 M solution of a colored substance has a maximum absorbance at 500 nm and an absorbance of 0.26 M at this wavelength, w
Mashcka [7]
Absorbance is related to the concentration of a substance using the Beer-Lambert's Law. According to this law, absorbance is linearly related to concentration. However, this is only true up to a certain concentration depending on the substance. For this case, we assume that the said law is applicable.

A = kC
Using the first conditions, ewe solve for k.
0.26 = k (0.10)
k = 2.6

A = kC
A = 2.6 (0.20) = 0.52

Therefore, the absorbance at a concentration of 0.20 M and wavelength of 500nm is 0.52.
7 0
2 years ago
Which of the following is NOT a property of a base?
inna [77]

Bases turns cabbage juice yellow or green is not a property of bases.

<u>Explanation:</u>

As per the property of the bases, the correct statements are:

  • The taste of the bases are bitter.
  • Solutions of bases are slippery in nature
  • Bases reacts with the metals to form hydrogen gas and a salt.
  • For example, sodium hydroxide reacts with zinc metal to form sodium zincate salt and hydrogen gas.

Wrong statement:

  • It turns cabbage juice yellow or green, whereas it turns the cabbage juice blue or green and acids turns cabbage juice red or pink.
8 0
3 years ago
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