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blsea [12.9K]
3 years ago
7

Given 7.65 mol AgNO3, determine the number of formula units.

Chemistry
1 answer:
Komok [63]3 years ago
3 0

Answer:

The number of formula units of silver nitrate is 4.61\times 10^{24}.

Explanation:

Moles of silver nitrate = n = 7.65 mol

1 mole = N_A=6.022\times 10^{23} atoms/ molecules/ ions

Let the number of formula units of silver nitrate be N.

N=n\times N_A

N=7.65 mol\times 6.022\times 10^{23}=4.61\times 10^{24}

The number of formula units of silver nitrate is 4.61\times 10^{24}.

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Answer:The answer to this question comes from experiments done by the scientist Robert Boyle in an effort to improve air pumps. In the 1600's, Boyle measured the volumes of gases at different pressures. Boyle found that when the pressure of gas at a constant temperature is increased, the volume of the gas decreases. when the pressure of gas is decreased, the volume increases. this relationship between pressure and volume is called Boyle's law.

Explanation: So, at constant temperature, the answer to your answer is: the volume decreases in the same ratio as the ratio of pressure increases.

BUT, in general, there is not a single answer to your question. It depend by the context.

For example, if you put the gas in a rigid steel tank (volume is constant), you can heat the gas, so provoking a pressure increase. But you won't get any change in volume.

Or, if you heat the gas in a partially elastic vessel (as a tire or a soccer ball) you will get both an increase of volume AND an increase of pressure.

FINALLY if you inflate a bubblegum ball, the volume will be increased without any change in pressure and temperature, because you have increased the NUMBER of molecules in the balloon.

There are many other ways to change volume and pressure of a gas that are different from the Boyle experiment.

4 0
2 years ago
Which element of the periodic table is named after the moon
Troyanec [42]

Answer:

The answer to your question is Selenium

Explanation:

The origin of the names of the elements comes from different origins

For example

Sanskrit words. 14 elements have roots from this language

Planets, 4 elements took their names from the planets.

Greek, 42 elements took their names from these languages

The name of Selenium comes from the greek that means moon.

8 0
3 years ago
Identify which reaction is NOT a chemical reaction.<br> es )
vova2212 [387]

Answer:

You never listed the options

Explanation:

A chemical reaction is a process that involves rearrangement of the molecular or ionic structure of a substance, as opposed to a change in physical form or a nuclear reaction.

4 0
3 years ago
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Inga [223]

Convert the wordphrase to expression

\\ \rm\longmapsto 2(x-1)+3

\\ \rm\longmapsto 2x-2+3

\\ \rm\longmapsto 2x+1

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2 years ago
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