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
Vlad1618 [11]
3 years ago
14

For the following list of acids, rank the acids in strength from weakest acid to strongest acid.

Chemistry
1 answer:
-BARSIC- [3]3 years ago
6 0

Answer:

CH3OH < FCH2OH < F2CHOH < F3COH

Explanation:

Let us recall that, for a carboxylic acid, the dissociation of the acid yields;

RCOOH ⇄RCOO^- + H^+

The ease of dissociation and release of the hydrogen ion depends on the nature of the group designated R.

When R is is a highly electronegative element, the -I inductive effect causes the hydrogen to become less tightly held by the C-Cl bond.

As the number of electron withdrawing substituents increaseses, the acid ionizes much more and becomes stronger.CH3OH < FCH2OH < F2CHOH < F3COH

Hence, the order of decreasing acid strength is;

You might be interested in
Ethylene oxide (EO) is prepared by the vapor-phase oxidation of ethylene. Its main uses are in the preparation of the antifreeze
Rashid [163]

Answer:

a. ΔH^0_{rxn} = -108.0\frac{kJ}{mol}

b. 320.76° C

Explanation:

a.)

we can solve this type of question (i.e calculate ΔH^0_{rxn} , for the gas-phase reaction )  using the Hess's Law.

ΔH^0_{rxn} =  E_{product} deltaH^0_{t}-E_{reactant} deltaH^0_{t}

Given from the question, the table below shows the corresponding  ΔH^0_{t}(kJ/mol) for each compound.

Compound                    H^0_{t}(kJ/mol)

Liquid EO                       -77.4

CH_4_(g_)                            -74.9                

CO_(g_)                              -110.5

If we incorporate our data into the above previous equation; we have:

ΔH^0_{rxn} = (-110.5 kJ/mol + (-74.9 kJ/mol) ) - (-77.4 kJ/mol)

          =   -108.0 \frac{kJ}{mol}

b.)

We are to find the final temperature if the average specific heat capacity of the products is 2.5 J/g°C

Given that:

the specific heat capacity (c) = 2.5 J/g°C

T_{initial} = 93.0°C   &

the  enthalpy of vaporization  (ΔH^0_{vap}) = 569.4 J/g

If, we recall; we will remember that; Specific Heat Capacity is the amount of heat needed to raise the temperature of one gram of a substance by one kelvin.

∴ the specific heat capacity (c) is given as =  \frac{Heat(q)}{mass*changeintemperature(T_{initial}-T_{final})}

Let's not forget as well, that  ΔH^0_{vap} = \frac{q}{mass}

If we substitute  ΔH^0_{vap}  for  \frac{q}{mass} in the above equation, we have;

specific heat capacity (c) = \frac{deltaH^0_{vap}}{T_{final}-T_{initial}}

Making (T_{final}- T_{initial}) the subject of the formula; we have:

T_{final}- T_{initial}  = \frac{delat H^0_{vap}}{specificheat capacity}

(T_{final}-93.0^0C)=\frac{569.4J/g}{2.5J/g^0C}

T_{final}=\frac{569.4J/g}{2.5J/g^0C}+93.0^0C

         = 227.76°C +93.0°C

          = 320.76°C

∴ we can thereby conclude that the final temperature = 320.76°C                

7 0
3 years ago
1. A fluid is a substance that (a) always expands until it fills any container; (b) is practically incompressible; (c) cannot be
meriva

Answer:

cannot remain at rest under the action of any shear force.

4 0
1 year ago
Classify the following mixturesin their proper column​
PolarNik [594]

Answer:

homogeneous mixtures: iron,alcohol,zonrox,wine.

heterogeneous mixtures: smoke,batchoy,spaghetti,halo halo,book,clothes.

8 0
2 years ago
What kind of chemical do you use to remove old polish for customer who has artificial nails?
Gwar [14]
Non-acetone polish remover
7 0
3 years ago
Which element is in group 2 and period 7 of the periodic table
bekas [8.4K]
Hey
      Sorry, But There Is No 7th Element in group two. only six which is Radium.
     ~Spades15
3 0
3 years ago
Other questions:
  • According to the following electron structure, how many valence electrons do these fluorine have?
    6·2 answers
  • The total number of valence electrons in a molecule of sof2 is ________.
    15·1 answer
  • Which is the MOST accurate description of diffusion of materials through the cell membrane in order to maintain homeostasis?
    11·2 answers
  • Quiz due today never understood this so can someone please help :)
    6·1 answer
  • A cube has a mass of 100 grams and it’s density to be 1 g/cm cubed . The volume of the cube must be ?
    12·1 answer
  • Are the effects of adding heat reversible
    15·1 answer
  • A thermometer having first-order dynamics with a time constant of 1 min is placed in a temperature bath at 100oF. After the ther
    6·1 answer
  • A student determines the density of an element to be 2.73 g/cm 3 . If the accepted value is 2.70 grams per cm 3 , what is the st
    15·1 answer
  • What parts do all cells have?
    6·2 answers
  • Given, 2Ca + O2 -&gt; 2CaO, what is the 2 located in front of calcium called??
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!