1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Novay_Z [31]
4 years ago
9

The presence of hydrogen bond in most molecules is responsible for the following except

Chemistry
2 answers:
-Dominant- [34]4 years ago
5 0
That answer is either 3 or 4, but I truly forgot which of the two.
Rom4ik [11]4 years ago
4 0

Answer:

3. low boiling point

Explanation:

There are primarily 4 types of intermolecular forces which exists between molecules.  In the increasing strength, these forces can be grouped as:

Ionic bond > hydrogen bonds > dipole-dipole > dispersion forces

Hydrogen bond is essentially a bond formed between H-atom and a highly electronegative atom like N, O, F etc. These are strong forces of attraction. Greater the H-bonding greater is the attractive force which will result in molecules having high melting and very high boiling points. It will also increase the polarity of the molecule making it more soluble in water.

You might be interested in
You have 50 ml of a complex mixture of weak acids that contains some HF (pKa = 3.18) and some HCN (pKa = 9.21). Which is larger,
telo118 [61]

Answer:

\frac{[F^{-}]}{[HF]} is larger

Explanation:

pK_{a}=-logK_{a} , where K_{a} is the acid dissociation constant.

For a monoprotic acid e.g. HA, K_{a}=\frac{[H^{+}][A^{-}]}{[HA]} and \frac{[A^{-}]}{[HA]}=\frac{K_{a}}{[H^{+}]}

So, clearly, higher the K_{a} value , lower will the the pK_{a}

In this mixture, at equilibrium, [H^{+}] will be constant.

K_{a} of HF is grater than K_{a} of HCN

Hence, (\frac{F^{-}}{[HF]}=\frac{K_{a}(HF)}{[H^{+}]})>(\frac{CN^{-}}{[HCN]}=\frac{K_{a}(HCN)}{[H^{+}]})

So, \frac{[F^{-}]}{[HF]} is larger

8 0
4 years ago
Please help! This is an exam practice but it’s really hard and I don’t really know it, any help will be appreciated!!
Olin [163]
The question number 1 is cytoplasm
Question number 2 is to supply more oxygen to the muscles
6 0
3 years ago
How many moles of Br atoms are in .5 mol of Br2 molecules
lesya692 [45]
Br2 5mol take a 10 mol Br atoms mol
5 0
3 years ago
Read 2 more answers
3. What would be the effect of bringing a basketball that was inflated indoors outside on a freezing winter
erica [24]

Answer:

it would go back to being deflated

4 0
3 years ago
Hydrogen bonds between water molecules are responsible for the unique chemical and physical properties of water. True False
N76 [4]

Answer:

True

Explanation:

The physical and chemical properties of a substance depend on the nature of intermolecular forces between its molecules. For instance, water has a high boiling point because of hydrogen bonding between water molecules. Liquid water is denser than ice because of the difference in the nature of hydrogen bonding in liquid water and ice.

3 0
3 years ago
Other questions:
  • Which of the following sources of radiation produced from nuclear power plants poses the largest threat to humans?
    15·2 answers
  • A solution is made by adding 200 g table salt to 1
    13·2 answers
  • You have two solutions, both with a concentration of 0.1M. Solution A contains a weak acid with a pKa of 5. The pH of solution A
    6·1 answer
  • Why are the electronegativities of the 5d elements so high?
    8·1 answer
  • Which best explains why some radioisotopes decay in a decay series ?
    11·1 answer
  • What is the electron configuration for lithium
    5·1 answer
  • A chemical equation is balanced if the number of each type of atom on the left side is equal to the number of each type on the r
    6·2 answers
  • What is the velocity of a skateboarder whose momentum is 100 kg-m/s and mass is 15 kg? Round to the nearest hundredth. A. 3.33 m
    15·2 answers
  • Hhheeeeelllllllpppppp
    6·2 answers
  • Why do you need to remove carbon dioxide and water vapour to produce liquid air
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!