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4 years ago

Liquids and solids are referred to as “condensed phases” because the attractive forces are?

Chemistry

2 answers:

oksian1 [2.3K]4 years ago

8 0

Explanation:

Condensed phase means that there is less space between the molecules of a matter. And a condensed phase do not compress easily so basically, they resist compression.

For example, solids and liquids are both condensed phases as there is less space between their particles and hence they are closer as compared to particles of a gaseous phase.

Though they have fixed volume but both of them are resistant to compression.

Therefore, we can conclude that liquids and solids are referred to as “condensed phases” because the attractive forces leave little space between the molecules.

Anna11 [10]4 years ago

3 0

<span>leave little space between the molecules.</span>

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from the pic:

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Read 2 more answers

3.65 gram of hcl is dissolved in 180 gram of water. Find the total number of molecules of hydrogen

Morgarella [4.7K]

Answer:

$Molec_{\ H_{tot}}=1.206x10^{25}molec$

Explanation:

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In this case, taking into account that HCl has one molecule of hydrogen per mole of compound which weights 36.45 g/mol, we compute the number of molecules of hydrogen in hydrochloric acid by considering the given mass and the Avogadro's number:

$molec_{\ H}=3.65gHCl*\frac{1molHCl}{36.45gHCl} *\frac{1molH}{1molHCl}*\frac{6.022x10^{23}molec_\ H}{1molH} =6.03x10^{22}molec$

Now, from the 180 g of water, we see two hydrogen molecules per molecule of water, thus, by also using the Avogadro's number we compute the molecules of hydrogen in water:

$molec_{\ H}=180gH_2O*\frac{1molH_2O}{18gH_2O} *\frac{2molH}{1molH_2O}*\frac{6.022x10^{23}molec_\ H}{1molH} =1.20x10^{25}molec$

Thus, the total number of molecules turns out:

$Molec_{\ H_{tot}}=6.03x10^{22}+1.20x10^{25}\\\\Molec_{\ H_{tot}}=1.206x10^{25}molec$

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4 years ago