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3 years ago

How does a salt bridge improve a battery

Chemistry

2 answers:

jonny [76]3 years ago

6 0

The role of the salt bridge is to assure the neutrality of both compartments.

statuscvo [17]3 years ago

5 0

The salt is kinda like a current for the battery

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Calculate the concentration of H3O ions present in a solution of HCl that has a measured pH of 5.310 .

agasfer [191]

$\\ \tt\leadsto -log[H^+]=5.31$

$\\ \tt\leadsto log[H^+]=-5.31$

$\\ \tt\leadsto [H^+]=antilog(-5.31)$

$\\ \tt\leadsto [H^+]=4.89\times 10^{-6}M$

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2 years ago

Which element has the smallest atomio radius?

posledela

The smallest atomio radius is helium

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3 years ago

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 $=3.24-1$ 

 $=2.24L$ 

6 0

3 years ago

Determine the net number of sigma bonds, the net number of pi bonds, and the overall bond order for N2+. Use 0.5 to indicate a f

trapecia [35]

Answer:

Net number of sigma bonds = 1

Net number of pi bonds = 2

Overall bond order = 3

Explanation:

Electronic configuration of N2 ia

1s2 2s2 2p3

There is head to head overlap in pz orbital. Thus, there is one sigma bond

Pi bond is formed whenever there is side wise overlapping. Since both px and py undergoes overlapping to form pi bond, there are two pi bonds

Bond order = 0.5 (bonding electron – antibonding electron)

= 0.5 (8-2) = 0.5*6 = 3

5 0

3 years ago

A piece of paper burns in a closed flask. As it burns, does the number of atoms in the flask increase, decrease, or remain the s

frozen [14]

Answer:

Probably the answer is B. The number of atoms decreases, the energy that is produced changing the type of atoms ( the quantity of paper) if the burning process is possible in a closed flask

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4 years ago

How does a salt bridge improve a battery​

How does a salt bridge improve a battery