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Alexxandr [17]
3 years ago
10

I need help! I don't understand..

Chemistry
1 answer:
lora16 [44]3 years ago
4 0

Answer:

0.77093576

Explanation:

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Answer:

a single compound

Explanation:

which is produced in a synthesis reaction

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What is the molarity of a solution containing 12.0 g of NaOH in 250.0 mL of solution?
riadik2000 [5.3K]

Answer:

1.196 M NaOH

Explanation:

Molarity = moles/Volume (L)

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aleksandr82 [10.1K]
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Which best demonstrates an example of the common ion effect?
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Answer: A.  The compound CuCl is 500 times less soluble in sea water than it is in pure water.

pure water.

Explanation:

Any change in the equilibrium is studied on the basis of Le-Chatelier's principle.

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Thus when a common ion is introduced to an equilibrium reaction, the equilibrium will shift in a direction where the concentration of common ion is decreasing.

CuCl\rightleftharpoons Cu^++Cl^-

NaCl\rightarrow Na^++Cl^-

When common ion such as Cl^- from NaCl in sea water is introduced to an equilibrium reaction, the equilibrium will shift in a direction where the concentration of common ion is decreasing i.e. in the left side and thus solubility of CuCl further decreases.

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Dafna11 [192]

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8 0
3 years ago
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