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-BARSIC- [3]
3 years ago
11

nonpolar solutes dissolve more readily in nonpolar solvents than polar solvents. Describe the interactions occuring between the

solute and the solvent
Chemistry
1 answer:
earnstyle [38]3 years ago
8 0

Answer:

The interactions are known as London dispersion forces.

Explanation:

It is widely known that the electron density distribution in polar and nonpolar molecules is not uniform and not static. In most cases, the electron density in any molecule will adjust to create a spontaneous dipole. In the presence of nonpolar solute and nonpolar solvent, the spontaneous dipoles have a propagating effect on the interaction. If molecule A produces a spontaneous dipole, then the electron density in the other molecule B will react by creating an opposite spontaneous dipole. The dipoles have interactive forces known as the London dispersion forces.The magnitudes of these forces increase with increase in the surface area of the molecule. Therefore, molecules with larger surface areas will have stronger London dispersion forces than those with smaller surface areas.

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Can any one please help me to answers this question i don't get it. thank in advance.
alex41 [277]
First, lets balance the reaction equation:
4Fe + 3O₂ → 2Fe₂O₃
It is visible form the equation that 4 moles of Fe require 3 moles of O₂
Molar ratio Fe/O₂ = 4/3 = 1.33
Molar ratio O₂/Fe = 3/4 = 0.75
Now, we check the molar ratios present:
Fe/O₂ = 6.8/8.9 = 0.76
O₂/Fe = 1.31

Thus, Iron is the limiting reactant because its ratio is not being fulfilled while the ratio of O₂ is surpassed.
8 0
3 years ago
Chromium(III) oxide reacts with hydrogen sulfide (H2S) gas to form chromium(III) sulfide and water: Cr2O3(s) + 3H2S(g) → Cr2S3(s
Tpy6a [65]

Answer:

(a) 0.779 mol Cr₂O₃

(b) 118 g Cr₂O₃

Explanation:

Step 1: Convert 156 g Cr₂S₃ to moles

Cr Molar Mass - 52.00 g/mol × 2 = 104.00 g/mol

S Molar Mass - 32.07 g/mol × 3 = 96.21 g/mol

156 g Cr₂S₃ ÷ 200.21 g/mol = 0.779182 mol Cr₂S₃

Step 2: Find conversion from Cr₂S₃ to Cr₂O₃

1 mol Cr₂S₃ equals 1 mol Cr₂O₃

Step 3: Use Dimensional Analysis

0.779182 mol Cr₂S₃ · \frac{1 \hspace{2} mol \hspace{2} Cr_2O_3}{1 \hspace{2} mol \hspace{2} Cr_2S_3} = 0.779182 mol Cr₂O₃

0.779182 mol Cr₂O₃ ≈ 0.779 mol Cr₂O₃ (3 significant figures)

Step 4: Convert moles to grams

Cr Molar Mass - 52.00 g/mol × 2 = 104.00 g/mol

O Molar Mass - 16.00 g/mol × 3 = 48.00 g/mol

0.779182 mol Cr₂O₃ · 152.00 g/mol = 118.436 g Cr₂O₃

118.436 g Cr₂O₃ ≈ 118 g Cr₂O₃ (3 significant figures)

6 0
3 years ago
When she dropped a rock into a graduated cylinder of water, Veronica noticed it sank to the bottom. She decided to investigate w
Romashka [77]
A is correct. water is incompressible, so it will always have the same density, regardless of volume
8 0
3 years ago
Read 2 more answers
Which of these is an accurate statement about scientific variables? A. They can be connected to one another. B. They are the sam
inna [77]

The correct option is A.

In scientific investigation, variable refers to those parameters that are manipulated or changed in an experiment. Variables are those factors or conditions that can exist in different amounts in a scientific investigation. There are three major types of experimental variables, these are, independent, dependent and controlled variables. All the variables that are used in an experiment are usually connected to one another, scientific investigators typically look for the relationships among the variables in order to depict how they associate with one another.

3 0
3 years ago
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Why should distilled water be tested for conductivity?
matrenka [14]
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3 years ago
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