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Aliun [14]
2 years ago
13

Calculate the percentage of limestone that dissolved from each solution. Start by subtracting the final mass from the initial ma

ss. Divide that number by the initial mass. Then multiply the result by 100 to make it a percent. Use this formula:
% dissolved= initial mass- final mass/ initial mass x 100

ORIGINAL: 0% Acid 33% Acid 66% Acid 100% Acid

Initial Mass (g) 10.0 10.1 10.0 9.9

Final Mass (g) 10.0 10.0 9.8 9.5


Record the percentage of limestone dissolved in each acid concentration.
Look at attched...

Chemistry
1 answer:
Leno4ka [110]2 years ago
7 0

9514 1404 393

Answer:

  see attached

Explanation:

It works nicely to let a spreadsheet do the calculations described in your problem statement.

You don't actually have to multiply by 100 to make the number a percent. Spreadsheets have the capability to show a value as a percentage just by changing the format.

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Mass of 0.432 moles of C8H9O4?
Fiesta28 [93]
Find one mole
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9 H = 1 * 9 = 9
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7 0
3 years ago
Read 2 more answers
Identify the change in state that does not have an increase in entropy. a. Water evaporating b. Dry ice subliming c. Water boili
jarptica [38.1K]

Answer:

E. Water Freezing

Explanation:

Entropy refers to the degree of disorderliness of a system.  

A. Water Evaporating: There is an increase in entropy, this is because the phase change is from liquid to gas. Gas particles are more disordered than liquid.

B. Dry Ice sublimating: Sublimating refers to a phase change from solid to gas. This is an increase in entropy, this is because the gas particles are more disordered than solid particles

C. Water Boiling: The phase change is from liquid to gaseous state. There is an increase in entropy. Gas particles are more disordered than liquid.

D. Ice melting: The phase change is from solid to liquid state. There is an increase in entropy. Liquid particles are more disordered than that of solid.

E. Water Freezing: The phase change is from liquid to solid state. There is a decrease in entropy. solid particles are less disordered than those of liquid.

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