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4 years ago

Is O2 hydrogen bonding or dipole dipole?

Chemistry

1 answer:

viva [34]4 years ago

5 0

Answer:

HF is electronegative compared to O2. HF has delta plus and delta minus creating a dipole moment, it is a polar molecule therefore it has a higher boiling point. O2 which is symmetrical and non polar (looks like O=O) and therefore has no dipole moment. Hydrogen bonds are hydrogen with N, O and F - the most electronegative elements. This makes the polarisation of the bond much stronger, and so the dipole-dipole bonding between them is stronger. (Since it is the attraction between partial positive charge and a partial negative charge, the larger the polarisation.

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What is the molarity of NaOH if 83.5 mL of NaOH is needed to react with 35.0mL of a 0.275 M solution of H2SO4?

Lostsunrise [7]

Answer:

0.231 mol/L

Explanation:

The first step is to write the balanced equation for this reaction:

$H_{2}SO_{4} +2NaOH ===> Na_{2}SO_{4} +2H_{2}O$

The second step is to find the number of moles in the acid:

number of moles = volume * concentration

= 0.035 L * 0.275 mol/L

= 0.009625 mol

The third step is to use the molar ratio from the balanced chemical equation to find the number of moles of NaOH that can neutralize 0.009625 mol of sulphuric acid.

n(sulphuric acid) : n(sodium hydroxide)

1 : 2

0.009625 mol : x

x = 0.01925 mol

Fourth step is to calculate the concentration of sodium hydroxide:

$concentration = \frac{number of moles}{volume} = \frac{0.01925}{0.0835} =0.231 mol/L$

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4 years ago

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shtirl [24]

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3 years ago

A multidose bottle of PO amoxicillin contains 336 ml.s and the patient takes 24 mLs per day. How many days will the patient be t

Anettt [7]

Answer:

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Explanation:

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3 years ago

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Aliun [14]

Answer:

Please refer to the attachment below.

Explanation:

Please refer to the attachment below for explanation.

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3 years ago

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ICE Princess25 [194]

Answer:

a. continent

Explanation:

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3 years ago