All categories

3 years ago

Oxygen is a gas at room temperature, while water is a liquid. Use intermolecular forces to explain the difference in state.

Chemistry

1 answer:

Korvikt [17]3 years ago

8 0

Answer:

Water has stronger attractions (dipole-dipole)

Explanation:

Oxygen gas has a double bond and has dipole moments that cancel out, as both oxygens evidently have similar electronegativities. Therefore, oxygen only has London-dispersion forces and is nonpolar.

Water is polar and therefore has dipole-dipole attractions in addition to London-dispersion forces and as both the H2O and the O2 have similar electron tendencies (mostly due to O being prevalent in both), the London-dispersion forces don't differ by much. But since water has those dipole-dipole attractions, water has a higher boiling point than oxygen gas

You might be interested in

Which traits does the western harvest mouse have that might be adaptive for the environment where it lives?

LuckyWell [14K]

Its tail helps it climb down the tall grasses and lets it swing from the grass like a monkey in a tree

Explanation:

7 0

3 years ago

An alkane with the formula C6H14 can be prepared by hydrogenation of either of two precursor alkenes having the formula C6H12.

ankoles [38]

Two precursor alkenes

H₃C CH₃
I I
H₂C=C-CH-CH₃ 2,3-dimethyl-1-butene

H₃C   CH₃
I   I
H₃C-CH=CH-CH₃ 2,3-dimethyl-2-butene

alkane

H₃C CH₃
  I I
H₃C-CH-CH-CH₃ 2,3-dimethylbutane

H₃C  CH₃ H₃C CH₃
I   I I I
H₂C=C-CH-CH₃ + H₂ → H₃C-CH-CH-CH₃

H₃C CH₃ H₃C   CH₃
I    I     I I
H₂C-C=CH-CH₃ + H₂ → H₃C-CH-CH-CH₃

6 0

3 years ago

Read 2 more answers

What draws water back to earth

spayn [35]

Gravity is the force that draws water back to the earth in the forms of rain, sleet and, snow.

7 0

3 years ago

Read 2 more answers

Which of the following is generally true of female bones in relationship to male bones?

gtnhenbr [62]

What are the options

6 0

3 years ago

CaO + H2O -> Ca(OH)2

yawa3891 [41]

The % yield of Ca(OH)₂ : 62.98%

<h3>Further eplanation </h3>

Percent yield is the compare of the amount of product obtained from a reaction with the amount you calculated

General formula:

Percent yield = (Actual yield / theoretical yield )x 100%

An actual yield is the amount of product actually produced by the reaction. A theoretical yield is the amount of product that you calculate from the reaction equation according to the product and reactant coefficients

Reaction

CaO + H₂O ⇒ Ca(OH)₂

mass CaO= 4.2 g

mol CaO(MW=56,0774 g/mol) :

$\tt mol=\dfrac{mass}{MW}\\\\mol=\dfrac{4.2}{56,0774 g/mol}\\\\mol=0.075$

mol Ca(OH)₂ based on mol CaO

mol ratio CaO : Ca(OH)₂,= 1 : 1, so mol Ca(OH)₂ = 0.075

mass Ca(OH)₂(MW=74,093 g/mol) ⇒ theoretical

$\tt mass=mol\times MW\\\\mass=0.075\times 74,093 g/mol\\\\mass=5.557~g$

% yield :

$\tt =\dfrac{actual}{theoretical}\times 100\%\\\\=\dfrac{3.5}{5.557}\times 100\%\\\\=62.98\%$

8 0

3 years ago