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2 years ago

The conductance of the electric current through the electrolytic solution increases with

1 answer:

7 0

The conductance of the electric current through the electrolytic solution increases with increase in concentration.

<h3>What is electrolytic solution?</h3>

Electrolytic solutions are solutions that are capable of conducting an electric current due to presence of ions.

The current flowing in an Electrolytic solutions is calculated as;

Q = It

I = Q/t

where;

Q is charges

Increase in the concentration of the charges, increases the amount of charges in the solution and hence the conductance of the solutions will increase as well.

Learn more about Electrolytic solutions here: brainly.com/question/14654936

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Aspirin (C9H8O4) is synthesized by reacting salicylic acid (C7H6O3) with acetic anhydride (C4H6O3). The balanced equation isC7H6

prisoha [69]

Answer:

For a: The mass of acetic anhydride needed is 73.91 grams.

For b: The theoretical yield of aspirin is 130.43 grams.

Explanation:

To calculate the number of moles, we use the equation:

$\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}$ .....(1)

For a:

Given mass of salicylic acid = $1.00\times 10^2g=100g$

Molar mass of salicylic acid = 138.121 g/mol

Putting values in equation 1, we get:

$\text{Moles of salicylic acid}=\frac{100g}{138.121g/mol}=0.724mol$

For the given chemical reaction:

$C_7H_6O_3+C_4H_6O_3\rightarrow C_9H_8O_4+CH_3COOH$

By stoichiometry of the reaction:

1 mole of salicylic acid reacts with 1 mole of acetic anhydride.

So, 0.724 moles of salicylic acid will react with = $\frac{1}{1}\times 0.724=0.724mol$ of acetic anhydride.

Now, to calculate the mass of acetic anhydride, we use equation 1:

Moles of acetic anhydride = 0.724 moles

Molar mass of acetic anhydride = 102.09 g/mol

Putting values in equation 1, we get:

$0.724mol=\frac{\text{Mass of acetic anhydride}}{102.09g/mol}\\\\\text{Mass of acetic anhydride}=73.91g$

Hence, the mass of acetic anhydride needed is 73.91 grams.

For b:

By stoichiometry of the reaction:

1 mole of salicylic acid is producing 1 mole of aspirin.

So, 0.724 moles of salicylic acid will produce = $\frac{1}{1}\times 0.724=0.724mol$ of aspirin.

Now, to calculate the mass of aspirin, we use equation 1:

Moles of aspirin = 0.724 moles

Molar mass of aspirin = 180.158 g/mol

Putting values in equation 1, we get:

$0.724mol=\frac{\text{Mass of aspirin}}{180.158g/mol}\\\\\text{Mass of aspirin}=130.43g$

Hence, the theoretical yield of aspirin is 130.43 grams.

4 0

3 years ago

Jill and Susan were absent when the instructions were given for the lab investigation. They gathered their materials and watched

MrRissso [65]

Jill and Susan violated safety procedures by not properly listening and/or reading over the instructions to know all the materials, steps, and equipment they need for the lab. Hope this helps!

6 0

3 years ago

Read 2 more answers

What is the mass of a neutron? 1/2,000 amu 1 amu 2,000 amu 1/200 amu

pashok25 [27]

Vas happenin!!

1 amu is the correct answer

Hope this helps

-Zayn Malik

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3 years ago

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A homogeneous mixture is made by dissolving some salt in a beaker of water. The mixture is referred to as a

CaHeK987 [17]

In that case, the salt would be the solvent and the water the solute.
So, it would be solution!

Have a nice day! :D

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3 years ago

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In this salt water floating egg experiment, how will you use these calculations to find the density of the egg? I’m really confu

Agata [3.3K]

Glass 1 Freshwater

The egg went directly to the base of the glass. Consequently it has sunk and did not drift

237.0

237 (1 glass)

1.000

Glass 2

Water with 2 teaspoons of salt

A similar outcome for glass 2 as container 1 when egg was set into the container it sank to the base.

248.4

237

1.048

Glass 3

Water with 3 teaspoons of salt

In reference to glass 1 and 2 the egg sank to the base for a third time.

254.1

237

1.072

Glass 4

Water with 4 teaspoons of salt

The egg remained gliding to where a little bit of the egg was standing out on the top, and when pushed down the egg returned up.

259.8

237

1.096

Hope this helps!

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3 years ago