CHEMISTRY MIDDLE SCHOOL

How many moles of sf6 are there in 459500000000000000 molecules of sf6

Answers

Answer 1

Answer:

Answer : The number of moles of $SF_6$ is, $7.63* 10^(-7)$ moles.

Solution :

As we know that,

1 mole contains $6.022* 10^(23)$ number of molecules

As, $6.022* 10^(23)$ number of molecules of $SF_6$ are present in 1 mole of $SF_6$

So, $4595* 10^(14)$ number of molecules of $SF_6$ are present in $(4595* 10^(14))/(6.022* 10^(23))=7.63* 10^(-7)$ moles of $SF_6$

Therefore, the number of moles of $SF_6$ is, $7.63* 10^(-7)$ moles.

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Rank the three most common types of radiation in order of increasing penetration power

Answers

They would be:

Alpha- these are fast moving helium atoms.

Beta- these are fast moving electrons.

Gamma - these are photons, just like light, except of much higher energy, typically from several keV to several MeV.

Why only electrons stick to oil drop in millikan's experiment however protons are also present there?why millikan only used oil ?and what is the ability in oil drop that it attracts electron towards itself?

Answers

Explanation:

probably because, X rays are used to ionise the gas molecules, which is loss of electrons, these electrons are absorbed by oil drops

What does jupiter and saturn have in common and what do they don't

Answers

they are both gas giants and have rings. but unlike Saturn's rings being made of ice and is visible Jupiter's rings are dark and hard to see. they are also made of tiny rock and dust.

they both have a gaseous surface, raging storms, rings, lots of moons, and are very large planets.

Why do you think the location surrounding the pacific ocean is known as the ring of fire

Answers

It is on a plate boundary so there are a lot of volcanoes in that area. All the volcanoes form a "ring" around the plate boundary.

Suppose the liquid water in ice cream did not have solutes dissolved in it. What effect do you think this would have on ice cream? (hint: Consider the temperature at which ice cream is kept.)

Answers

The water with no solutes result in increasing the freezing point of the ice cream.

The ice cream has been the frozen constituents of the water. It has been kept in the water at the lower temperature.

The water for keeping the ice cream has been constituted of no solute. The absence of solute in the water has been responsible for the higher freezing point of the solution.

Effect of solute on Freezing point

The ice cream has been kept at the freezing temperature. The water has no solute dissolved.

Thus, the freezing temperature of water has been higher than the freezing temperature of water with solutes.

Thus, the water with no solutes result in increasing the freezing point of the ice cream.

Learn more about freezing point, here:

brainly.com/question/2292439

The water would freeze at a higher temperature than it would with the other ingredients.

Water has a high (blank) which causes it to heat very slowly

Answers

boiling point... i'm pretty sure

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