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3 years ago

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Chemistry

2 answers:

Sophie [7]3 years ago

7 0

A weak acid since acids are 1-7 and 3 is close to 1

telo118 [61]3 years ago

4 0

The pH scale was given by Sorensen to quanitatively define strength of an acid and base

the pH scale extends from 0 to 14

For acids

The pH should be less than 7 [always]

For base

The pH should be more than 7 [always]

The pH seven is of neutral solution

pH = -log[H+]

Thus lower the pH higher the concentration of hydronium ion or protons produced by an acid

thus for the given pH scale interval [0-3] it represents strong acid [Which will give high concentration of protons on dissociation]

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Which of the following is a change from a more condensed to a less condensed state of matter? Freezing Condensing Evaporating So

3241004551 [841]

Evaporating.

This is because evaporation occurs for things such as water coming in contact with a heat source that cause molecules to run crazy and begin to go farther and farther apart, becoming steam and evaporation in the air.

Therefore, during the process of evaporation, molecules become less condensed.

Hope this helps!

8 0

3 years ago

Solve the science problem

erastovalidia [21]

Answer:

It's C

Explanation:

3 0

3 years ago

Read 2 more answers

Heating a carboxylic acid with a primary amine forms water along with what organic product? OA) A secondary amide OB) A primary

Bezzdna [24]

Answer:

A) secondary amide

Explanation:

When carboxylic acid reacts with a primary amine, a condensation reaction takes place with the elimination of a water molecule .

For example, ethanol reacts with methylamine which is a primary amine gives N-Methylacetamide and a water molecule as:

$CH_3COOH+NH_2CH_3\rightarrow CH_3-CONH-CH_3+H_2O$

The bond formed which is

-- C ---NH ---

is known as secondary amide group as only one hydrogen is attached to nitrogen atom in the amide bond.

5 0

3 years ago

How will it move ? quiz2 can yall help me with this quiz.

olga55 [171]

How will what move? What, exactly, are you asking?

3 0

3 years ago

If 2.00g of p-aminophenol ( 109.1 g/mol) reacts with 5.00 ml of acetic anhydride (102.1 g/mol and density = 1.08 g/ml), what mas

inna [77]

The complete reaction is as,

4-Aminophenol + Acetic Anhydride → Acetaminophen + Acetic Acid

First of all convert the ml of Acetic anhydrite to grams,
As,
Density = mass / volume
Solving for mass,
mass = Density × Volume
Putting values,
mass = 1.08 g/ml × 5ml

mass = 5.4 g of acetic anhydride

First Find amount of acetic anhydride required to react completely with 2 g of p-Aminophenol,
As,
109.1 g of p-aminophenol required = 102.1 g of acetic anhydride
so, 2 g of p-aminophenol will require = X g of Acetic Anhydride

Solving for X,
X = (2 g × 102.1 g) ÷ 109.1 g

X = 1.87 g of acetic anhydride is required to be reacted.

But, we are provided with 5.4 g of Acetic Anhydride, means p-aminophenol is the limiting reactant and it controls the formation of product. Now Let's calculate for product,
As,
109.1 g of p-aminophenol produced = 180.2 g of Acetaminophen
So 2.00 g of p-aminophenol will produce = X g of Acetaminophen

Solving for X,
X = (2.00 g × 180.2 g) ÷ 109.1 g

X = 3.30 g of Acetaminophen

Result:
If 2.00g of p-aminophenol reacts with 5.00 ml of acetic anhydride 3.30 g of acetaminophen is made.

4 0

3 years ago