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2 years ago

Explain how acids and bases directly or indirectly affect the hydrogen ion concentration of a solution.

1 answer:

8 0

By taking hydrogen ions, certain bases directly lower the H+ than OH- concentration. Other bases break down to create hydroxide ions, which indirectly lowers the H+ concentration.

<h3>What is the difference between acid and base?</h3>

H+ ion concentration is raised by an acid. A base is a chemical that, in an aqueous solution, produces hydroxide (OH-) ions, gives electrons, and receives protons. A donor of protons is an acid. A proton can enter a base. When dissolved in water, an acidic chemical compound produces a solution that has more H+ ion activity than clean water. A base is an aqueous material that releases hydroxide (OH-) ions, receives protons, or contributes electrons. A donor of protons is an acid. A base is a proton acceptor.

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the ph of a solution of HCl in water is found to be 2.50. what volume of water would you add to 1.00L of this solution to raise

morpeh [17]

Answer:

To raise the pH of the solution to 3.10 we have to add 2.34 L of water.

Explanation:

Given that the pH of the solution of HCl in water is 2.5. Here the solution’s pH is changing from 2.5 to 3.10 which means the acidic nature of the solution is decreasing here on dilution. $[H^+]$ ions contribute to a solution’s acidic nature and $[OH^-]$ contribute to a solution’s basic nature.

The equation connecting the concentration of $[H^+]$ and pH of a solution is pH= $-log[H^+]$

 $[H^+]= 10^(^-^p^H^)$ $[H^+]= 10^(^-^2^.^5^)=0.00316$ 

When the pH is $3.1 [H^+ ]= 10^(^-^3^.^1^)=0.000794$ 

On dilution the concentration of a solution decreases and volume increases.

 $M_1 V_1 = M_2 V_2$ 

 $0.00316 \times 1 = 0.000794 \times V_2$ 

 $V_2 = \frac{(0.00316 \times 1)}{0.000794} =3.24$ 

Volume of water to be added $=3.24-1$ 

 $=2.24L$ 

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3 years ago

Copper is used to make electric wire because it is a good _

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Because it has high electrical conductivity

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4 years ago

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The small bags of silica gel you often see in a new shoe box are placed there to control humidity. Despite its name, silica gel

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Answer:

The sign of \Delta GΔG is negative.

The sign of \Delta HΔH is negative.

The sign of \Delta SΔS is negative.

Explanation:

The water vapor is adsorbed on silica gel due to strong hydrophilicity of silica get towards the water.

The thermodynamic properties of adsorbate and adsorbent changes after adsorption. Silica gel is very porous and hydrophilic, thus, it absorbs the water from the shoe box.

The adsorption process occurs spontaneously, therefore Delta G < 0.

When adsorption occurs, bonds are formed between water molecules and SiO2, and the bond formation process is exothermic (heat is released).

Thus, Delta H < 0.

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3 years ago

Inertia increases as an object's Blank Space __________ increases.

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4 years ago

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In the operation of the Heat Transfer Service Unit, one of the variables you can control is the rate of cooling water flowing ag

max2010maxim [7]

Answer:

A. The rate of heat transfer through the material would increase.

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