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4 years ago

What is a supersaturated solution?

Chemistry

1 answer:

kakasveta [241]4 years ago

3 0

Answer:

C) a solution containing more solute than should be possible

Explanation:

Supersaturation is a solution that contains more of the dissolved material than could be dissolved by the solvent under normal circumstances.

So, the right choice is:

<em>C) a solution containing more solute than should be possible.</em>

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Serjik [45]

Answer:

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Explanation:

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3 years ago

The process of converting a liquid into a solid is called (4 points)

attashe74 [19]

The answer would be freezing

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4 years ago

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___________________ is a substance that reduces surface tension (Ex. Soap)

Daniel [21]

Answer:

Surfactant. Surfactant, also called surface-active agent, substance such as a detergent that, when added to a liquid, reduces its surface tension, thereby increasing its spreading and wetting properties

Explanation:

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4 years ago

A student carried out a titration using HC2H3O2(aq) and NaOH(aq). The net ionic equation for the neutralization reaction that oc

cluponka [151]

Answer:

The ratio of HC2H3O2(aq) in the flask after the addition of 5.0mL of NaOH(aq) to HC2H3O2(aq) in the flask after the addition of 1.0mL of NaOH(aq) is 15 : 19 .

Explanation:

HC2H3O2 is CH₃⁻ COOH, which is also known as Acetic acid.

IUPAC name of this compound is Ethanoic acid.

Acetic acid has a basicity of 1. so there is one acidic hydrogen is acetic acid.

Given that, equivalence point was reached when 20.0mL of NaOH is added.

let the normality of acetic acid is N₁ and that of NaOH is N₂.

volume of acetic acid is V₁ and that of NaOH is V₂.

Equivalence point occurs when, N₁ × V₁ = N₂ × V₂.

⇒ N₁ × V₁ = N₂ × 20.

after the addition of 5.0mL of NaOH(aq), remaining N₁ × V° = N₂ × (20 - 5).

= N₂ × 15.

after the addition of 1.0mL of NaOH(aq), remaining N₁ × Vˣ = N₂ × (20 - 1).

= N₂ × 19.

⇒ V° : Vˣ = 15 : 19 .

⇒

7 0

3 years ago

Draw the products of benzoic acid reacting with sodium hydroxide.

Katena32 [7]

Answer:

Products: C6H5COO-Na+ (aq) + H2O (l)

Explanation:

when the benzoic acid react with sodium hydroxide, the acid part i.e carboxyl group is react with the base and produce ionic compound sodium benzoate (C6H5COO-Na+).

Chemical equation:

C6H5COOH + NaOH → C6H5COO-Na+ + H2O

Chemical reaction with physical states:

C6H5COOH (s) + NaOH (aq) → C6H5COO-Na+ (aq) + H2O (l)

Sodium benzoate is very polar ionic compound and soluble in water. If we add HCl into this solution sodium benzoate will be converted back into benzoic acid.

Properties of benzoic acid:

1. it is colorless solid.

2. it is crystalline in nature.

3. it is aromatic compound with the formula C7H6O2.

4. it is soluble into benzene, alcohol and ether.

5. its molar mass is 122.12 g/mol.

Properties of sodium benzoate:

1. Sodium benzoate is white odorless chemical compound.

2. It is aromatic compound and molecular formula is C7H5NaO2.

3. Its molecular weight is 144.11 g/mol.

4. it is sweet in taste and soluble in water.

5. it is used as preservative because of its antimicrobial properties.

Properties of Sodium hydroxide:

1. it is colorless solid and inorganic compound.

2. it is crystalline in nature.

3. its molar mass is 40 g/mol.

4. its molecular formula is NaOH.

5. its melting point is 318 °C.

6 0

3 years ago