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3 years ago

Why B-Cl bond is polar?

Chemistry

2 answers:

aniked [119]3 years ago

8 0

Answer:

The difference in the electronegativities of chlorine and boron is 3.0 - 2.0 = 1.0 ; the difference in between chlorine and carbon is 3.0 = 2.5 = 0.5 . Consequently, the B-Cl bond is more polar ; the chlorine atom asrries the partial negative charge because it has higher electronegativity .

Explanation:

hope it helps!

Dima020 [189]3 years ago

7 0

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The products of a chemical reaction have different properties than the reactants.

Marta_Voda [28]

Answer:

Explanation:

The products of a chemical reaction have different properties than the reactant because they underwent a chemical change by definition of a chemical reaction. The products are new combinations atoms forming different molecules.

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2 years ago

What is the molar mass of CH4 (C=12.011 amu H = 1.008 amu)

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Answer:

16.05 amu

Explanation:

12.011 rounds to about 12.01 and 1.008 rounds to about 1.01 so when adding you'd do [12.01 + (1.01×4)]= 16.05

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3 years ago

What substance can be used to electrolyze water? any electrolyte that is not easily reduced or oxidized hydrochloric acid only s

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3 years ago

At 20°C the vapor pressure of benzene (C6H6) is 75 torr, and that of toluene (C7H8) is 22 torr. Assume that benzene and toluene

valina [46]

Answer: The mole fraction of benzene will be 0.34 and mole fraction of toluene is 0.66

Explanation:

According to Raoult's law, the vapor pressure of a component at a given temperature is equal to the mole fraction of that component multiplied by the vapor pressure of that component in the pure state.

$p_1=x_1p_1^0$ and $p_2=x_2P_2^0$

where, x = mole fraction in solution

$p^0$ = pressure in the pure state

According to Dalton's law, the total pressure is the sum of individual pressures.

$p_{total}=p_1+p_2\\$ $p_{total}=x_{benzene}p_{benzene}^0+x_{toluene}P_{toluene}^0$

$x_{benzene}=x$ ,

$x_{toluene}=1-x_{benzene}=1-x$ ,

$p_{benzene}^0=75torr$

$p_{toluene}^0=22torr$

$p_{total}=40torr$

$40=x\times 75+(1-x)\times 22$

$x=0.34$

Thus (1-x0 = (1-0.34)=0.66

Thus the mole fraction of benzene will be 0.34 and that of toluene is 0.66

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3 years ago

1. Which of the following pairs of factors affects the solubility of a particular substance? (1 point)

Lina20 [59]

<h2>Question no 1:</h2><h3>Answer:</h3>

The correct answer is option A which is temperature and the nature of solute and solvent

<h3>Explanation:</h3>

The solubility of a substance is its ability to dissolve in a particular solution.
Solubility is highly dependent on the temperature and nature of solute and solvent.
It is directly proportional to the temperature. As we increase the temperature, the solubility of substantial increases but for the exothermic reactions, solubility is inversely proportional to temperature.
Solubility is absolutely dependent on the nature of solute and solvent, as polar solute and solvents have high solubility than non polar.

<h2>Question no. 2</h2><h3>Answer:</h3>

The correct answer is option B which is a large amount of solute.

<h3>Explanation:</h3>

A concentrated solution contains the maximum amount of solute which can be dissolved in the solvent.
For example, in water sugar solution concentrated solution will contain a large amount of sugar dissolved in water without the addition of heat.
In dilute solution, there is a small amount of solute.

<h2>Question no. 3:</h2><h3>Answer:</h3>

The correct answer is option B which is molarity × liters of solution.

<h3>Explanation:</h3>

Molarity of a solution is the total number of moles of solute per unit volume of solution.

Its formula is:

Molarity = Number of moles of the solute/volume of solution in liters.

A number of moles of solute = Molarity × Volume of the solution.

So the number of moles of solute is equal to the molarity and volume of solution. Hence correct option is B.

<h2>Question no 4.</h2><h3>Answer:</h3>

The correct answer is option D. Molarity of the dilute solution = 0.81 M

<h3>Explanation:</h3>

Given data:

initial volume = V1 = 225 mL = 0.225 L

Initial molarity = M1 = 0.80M

Final volume = V2 = 1 L

Final molarity = M2 = ?

Solution:

It is the dilution of the stock solution and the formula is given below:

V1M1 = V2M2

M2 = V1.M1/V2

By putting values in the formula:

M2 = 0.225 × 0.8/1

M2= 0.18

So the final molarity of the solution will be 0.18 M. Hence the correct answer is option D.

<h2>Question no. 5</h2><h3>Answer:</h3>

The correct answer is option B which is supersaturation.

<h3>Explanation:</h3>

Colligative properties of the solution are the properties which are not dependent on the number of particles of the solute in the solution.
While supersaturation of the solution means the solution containing the highest number of solute particles dissolved in the solution.
Since supersaturation is dependent on a number of solutes, it is not a colligative property.

<h2>Question no 6.</h2><h3>Answer:</h3>

The correct answer is option B/C, "which disrupts crystal formation of the solvent".

<h3>Explanation:</h3>

Depression of freezing point is the colligative property of the solution.
Which the lowering of the freezing point of a solution by adding the solute.
The addition of solute disrupts the crystal formation in the solvent, as it disrupts the intermolecular forces between solute particles.
Hence option B and C are the correct options because both have the same statement.

<h2>Question no 7.</h2><h3>Answer:</h3>

The correct answer is option D which is 142.

<h3>Explanation:</h3>

<u>Given data:</u>

Volume of solution = 167 ml

Percentage of solution = 85%

The volume of alcohol =?

<u>Solution:</u>

Percentage of solution ( v/v) = volume of solute/volume of solution × 100

The volume of solute = percentage × volume of solution/100

By putting values in above formula:

Volume of alcohol = 85 × 167/100 = 141.95 ml

<em><u>Hence the correct answer is option D which is approximately 142(141.95).</u></em>

8 0

2 years ago

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Why B-Cl bond is polar? ​

Why B-Cl bond is polar?