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3 years ago

How does the polarity of the solute affect how well a solvent will dissolve?

1 answer:

4 0

Polarity is the ability to distinguish between the electric charge of a molecule or different chemical groups having dipoles or multipole moment. Polar molecules have polar bonds based on the difference in electronegativity between atoms bonded together. Polarity affects how solvents dissolve by following the idea that "like dissolves like" in other words, polar molecules are best dissolved in polar solvents and nonpolar molecules dissolve better in nonpolar solvents. Moreover, ionic solvents dissolve polar solutes. By this the final answer is E, similar polarity makes the solvent more likely to dissolve

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a 32 gram radioactive sample has a half-life of 2 days how much of the original sample remains after 6 days

bixtya [17]

First, we will get the "n", the number of half lives, it is the elapsed time over the half life. In the problem, the time is measured in days, so we have

6/2 = 3

to get the ending amount of radioactive sample, we have

32g x (1/2)³ = 4 grams of radioactive sample ⇒ the amount left after 6 days

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3 years ago

In your home, you can turn off your television set but all of your other appliances will stay on. This is because the appliances

Leto [7]

Answer:

in parallel

Explanation:

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3 years ago

13. An atom has a mass number of 12 and an atomic number of 7. How many neutrons does it

zheka24 [161]

Answer:

Explanation:

mass number=no of protons +no of neutron

mass number-atomic number=no of neutron

12-7=5

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3 years ago

0.60 atm of SO3 and 0.30 atm of SO2are placed in a container and the system is allowed to reach equilibrium. Calculate the press

frozen [14]

Complete Question

The complete question is shown on the first uploaded image

Answer:

The pressure is $[O_2] = 4.8 *10^{-5} \ atm$

Explanation:

From the question we are told that

The pressure of $SO_3$ is $[SO_3 ] = 0.63 \ atm$

The pressure of $SO_2$ is $[SO_ 2] = 0.30 \ atm$

The equilibrium constant is $K_p = 1.2 *10^{-5}$

The reaction is

$2SO_3 _{(g)}$ ⇔ $2SO_2_{(g)} + O_2 _{(g)}$

Generally the equilibrium constant is mathematically represented as

$K_p = \frac{(SO_2)^2 * (O_2)}{(SO_3)^2}$

=> $[O_2] = \frac{k_p * [SO_3] ^2 }{[SO_2]^2}$

substituting values

$[O_2] = \frac{1.2 *10^{-5} * 0.60 ^2 }{0.30^2}$

$[O_2] = 4.8 *10^{-5} \ atm$

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3 years ago

What is the difference between a cup of tea at 95°C, and a drop of tea at 95°C?

nika2105 [10]

Answer:

See the explanation below

Explanation:

Both the cup of coffee and drop of coffee have the Same temperature of 95°C.

Although the difference is the cup of coffee has more heat contained in it than the drop of coffee. An explanation is when we heat a cup of coffee it will take more time to Attain in 95°C while the drop of coffee will take less time

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3 years ago