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3 years ago

Which type of substance will have the highest boiling point? Select the correct answer below:

Chemistry

1 answer:

nalin [4]3 years ago

5 0

Answer: Option (c) is the correct answer.

Explanation:

Polar molecules are defined as the molecules that chemically combine together and have partial opposite charges.

For example, $H_{2}O$ is a polar molecule as due to the difference in electronegativity of hydrogen and oxygen atom there is partial positive charge on hydrogen atom and partial negative charge on oxygen atom.

On the other hand, molecules which are neutral in nature are known as non-polar molecules. A non-polar molecule is formed by equal sharing of electrons.

For example, $CCl_{4}$ is a non-polar molecule.

As in a large polar molecule, there will be greater force of attraction between the oppositely charged ions due to large surface area. Hence, large amount of heat needs to given in order to break the bonds.

Therefore, we can conclude that a large polar molecule will have the highest boiling point.

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1.00 L of a gas at STP is compressed to 473mL. What is the new pressure of gas?

Ratling [72]

Hello!

1.00 L of a gas at STP is compressed to 473 mL. What is the new pressure of gas?

We have the following data:

Vo (initial volume) = 1.00 L

V (final volume) = 473 mL → 0.473 L

Po (initial pressure) = 1 atm (pressure exerted by the atmosphere - in STP)

P (final pressure) = ? (in atm)

We have an isothermal transformation, that is, its temperature remains constant, if the volume of the gas in the container decreases, so its pressure increases. Applying the data to the equation Boyle-Mariotte, we have:

$P_0*V_0 = P*V$

$1*1 = P*0.473$

$1 = 0.473\:P$

$0.473\:P = 1$

$P = \dfrac{1}{0.473}$

$\boxed{\boxed{P \approx 2.11\:atm}}\:\:\:\:\:\:\bf\green{\checkmark}$

Answer:

The new pressure of the gas is 2.11 atm

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3 0

3 years ago

Sand dunes protect beaches against erosion and flooding due to storms.

kogti [31]

Answer:

B. Building houses near the beach

Explanation:

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7 0

4 years ago

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Ahat [919]

Answer:

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Explanation:

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3 years ago

Zn(s)+cu2+(aq)→zn2+(aq)+cu(s). part a under standard conditions, what is the maximum electrical work, in joules, that the cell c

Marizza181 [45]

The energy in Joules is calculated as:

E = VQ

At standard conditions, the standard potential or the voltage is equal to 0.76 V. Next, we have to determine Q. The formula is as follows:

Q = nF, where n is the number of moles electron, while F is the Faraday's constant (96,500 C/mol e)

From the given reaction, notice that Zn was converted to Zn²⁺, while Cu²⁺ to Cu. So, 1 mol Cu = 2 mol e.

Q = 51 g Cu (1 mol Cu/63.55 g)(2 mol e/1 mol Cu)(96,500 C/mol e)
Q = 154885.92 C

Thus,
E = (0.76 V)(154885.92 C)
E = 117,713.3 J

4 0

4 years ago

What would the result be of adding one proton to an atom

GREYUIT [131]

Answer:Protons carry a positive electrical charge and they alone determine the charge of the nucleus. Adding or removing protons from the nucleus changes the charge of the nucleus and changes that atom's atomic number. For example, adding a proton to the nucleus of an atom of hydrogen creates an atom of helium and thats your answer

Explanation:

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