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kkurt [141]
3 years ago
11

the ability of an ion depends upon its charge density comment on the statement what is essential difference between hydration an

d hydrolysis​
Chemistry
1 answer:
Butoxors [25]3 years ago
6 0
  • The statement that an ability of ion depends on its charge density can be understood by its relation to its definition where charge density refers to the ratio of charge of ions to its volume.
  • The main difference between hydrolysis and hydration is that hydrolysis includes the split of a water molecule whereas hydration does not always include the split of a water molecule.

<u>Explanation</u>:

  • Their relation is that if, greater the charge density greater will be the ability of ion for reaction/reacting.
  • If Sodium ion (Na+) and Magnesium ion (Mg2+). They both contain 10 electrons, i.e. in the ratio (2,8). But, the number( no.) of protons in both ions is different. In the case of ion ( sodium), there are 11 protons present in its nucleus while in the case of ion (magnesium ) there are 12 protons present in its nucleus.
  • A chemical process in which a molecule is separated into two parts by the addition of a molecule of water is known as Hydrolysis. A reaction in which an attachment of hydrogen and hydroxyl ion takes place to a carbon in a carbon double bond is known as Hydration.

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Atoms of which element have the greatest tendency to gain electrons?
Anastasy [175]
Fluorine. 

Because:- Atoms want to become stable, for an atom to become stable, they need 8 valence electrons. Since Fluorine has 7 valence electrons, it only needs one more electron to become stable and have an octet. An octet is when an atom/element has 8 valence electrons. Since Fluorine will need to gain an electron, it will have a negative charge, and become an anion. 
8 0
3 years ago
Read 2 more answers
B. The following reaction takes place in a basic solution. (7 points)
Natali5045456 [20]

<u>Answer:</u> The final equation has hydroxide ions which indicate that the reaction has occurred in a basic medium.

<u>Explanation:</u>

Redox reaction is defined as the reaction in which oxidation and reduction take place simultaneously.

The oxidation reaction is defined as the reaction in which a chemical species loses electrons in a chemical reaction. It occurs when the oxidation number of a species increases.

A reduction reaction is defined as the reaction in which a chemical species gains electrons in a chemical reaction. It occurs when the oxidation number of a species decreases.

The given redox reaction follows:

MnO_4^-(aq)+NO_2^-(aq)\rightarrow MnO_2(s)+NO_3^-(aq)

To balance the given redox reaction in basic medium, there are few steps to be followed:

  • Writing the given oxidation and reduction half-reactions for the given equation with the correct number of electrons

Oxidation half-reaction: NO_2^-+2OH^-\rightarrow NO_3^-+H_2O+2e^-

Reduction half-reaction: MnO_4^-+2H_2O+3e^-\rightarrow MnO_2+4OH^-

  • Multiply each half-reaction by the correct number in order to balance charges for the two half-reactions

Oxidation half-reaction: NO_2^-+2OH^-\rightarrow NO_3^-+H_2O+2e^-         ( × 3)

Reduction half-reaction: MnO_4^-+2H_2O+3e^-\rightarrow MnO_2+4OH^-             ( × 2)

The half-reactions now become:

Oxidation half-reaction: 3NO_2^-+6OH^-\rightarrow 3NO_3^-+3H_2O+6e^-

Reduction half-reaction: 2MnO_4^-+4H_2O+3e^-\rightarrow 2MnO_2+8OH^-

  • Add the equations and simplify to get a balanced equation

Overall redox reaction: 3NO_2^-+2MnO_4^-+H_2O\rightarrow 3NO_3^-+2MnO_2+2OH^-

As we can see that in the overall redox reaction, hydroxide ions are released in the solution. Thus, making it a basic solution

3 0
3 years ago
A certain first-order reaction 45% complete in 65seconds, determine the rate constant and the half life for the process ​
masha68 [24]

The rate constant : k = 9.2 x 10⁻³ s⁻¹

The half life : t1/2 = 75.3 s

<h3>Further explanation</h3>

Given

Reaction 45% complete in 65 s

Required

The rate constant and the half life

Solution

For first order ln[A]=−kt+ln[A]o

45% complete, 55% remains

A = 0.55

Ao = 1

Input the value :

ln A = -kt + ln Ao

ln 0.55 = -k.65 + ln 1

-0.598=-k.65

k = 9.2 x 10⁻³ s⁻¹

The half life :

t1/2 = (ln 2) / k

t1/2 = 0.693 : 9.2 x 10⁻³

t1/2 = 75.3 s

3 0
3 years ago
Name two things in the lab that are for safety
Blizzard [7]

Answer:

Safety goggles and chemical fume hoods

Explanation:

5 0
3 years ago
A 100.-gram sample of H2O(l) at 22.0°C absorbs 830. joules of heat. What will be the final temperature of the water? Hurry pleas
k0ka [10]

Answer:

That is extremely confusing. Try contacting your prof.

Explanation:

4 0
3 years ago
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