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Scrat [10]
3 years ago
6

Classify water as proton donor or proton acceptor with reactions???

Chemistry
1 answer:
olasank [31]3 years ago
4 0

Answer: It should a accepter

Explanation: because water is often used as solvent for solutes...there are exceptions

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Without doing any calculations, match the following thermodynamic properties with their appropriate numerical sign for the follo
Mrac [35]

<u>Answer:</u> \Delta H of the reaction will be negative, \Delta S of the reaction will be positive and \Delta G of the reaction will be negative.

<u>Explanation:</u>

Thermodynamic properties are enthalpy change (\Delta H), entropy change (\Delta S) and Gibbs free energy(\Delta G)

Exothermic reactions are defined as the reactions in which energy is released in the form of heat. The enthalpy change (\Delta H) of the reaction comes out to be negative for this kind of reaction.

Entropy change is defined as the change in the measure of randomness in the reaction. It is represented as (\Delta S). Randomness of gaseous particles is more than that of liquid which is further more than that of solids.

For the given exothermic reaction:

2C_2H_6(g)+7O_2(g)\rightarrow 4CO_2(g)+6H_2O(g)

As, number of gaseous particles on the product side is more than the number of gaseous particles on the reactant side. So, the entropy change is positive. Hence, \Delta S is positive.

The above reaction is spontaneous. Thus, the Gibbs free energy will be negative.

For the given reaction:

  • \Delta H = -ve
  • \Delta S = +ve
  • \Delta G = -ve
6 0
3 years ago
Calculate the Molarity when 14.6 g Ethanol (C2H5OH) is dissolved in a 2.10 L solution.
Nana76 [90]
The molarity is 0.151 mol/L
Hope it helps.
5 0
2 years ago
I need to know all the answers for this homework!!!!
maw [93]

1. 100 C

2. Point B to C is the ices heat capacity

3. During the points D to E the bonds of the water molecules build up enough kinetic energy to break their intermolecular bonds (not intra), which can lead to gas.

4. Between points D and E the energy is being released the energy required is equivalent along the line.

5. Between point E and D the water is converting to water (condensation)

6. Energy is being released 2260 j/g

7. Yes, but only under extreme volumetric pressures

8. D and E or B and C

9. Freezing (the water is also becoming less dense)

10. Melting or if water already, absorbtion of energy

11. released.

5 0
2 years ago
What is the one variable that is changed in the experimental group called? the placebo the independent variable the control grou
BlackZzzverrR [31]

Answer:

the independant variable

Explanation:

4 0
3 years ago
What is the value for the reaction: N2(g) + 2 O2(g) --&gt; N2O4(g) in terms of K values from the reactions:
Valentin [98]

Answer : The correct expression will be:

K=(K_1)^2\times K_2

Explanation :

The chemical reactions are :

(1) \frac{1}{2}N_2(g)+\frac{1}{2}O_2(g)\rightleftharpoons NO(g) K_1

(2) 2NO(g)+O_2(g)\rightleftharpoons N_2O_4(g) K_2

The final chemical reaction is :

N_2(g)+2O_2(g)\rightleftharpoons N_2O_4 K=?

Now we have to calculate the value of K for the final reaction.

Now equation 1 is multiply by 2 and then add both the reaction we get the value of 'K'.

If the equation is multiplied by a factor of '2', the equilibrium constant will be the square of the equilibrium constant of initial reaction.

If the two equations are added then equilibrium constant will be multiplied.

Thus, the value of 'K' will be:

K=(K_1)^2\times K_2

6 0
3 years ago
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