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jarptica [38.1K]
2 years ago
12

Which statement is true regarding a titration? It measures the amount of heat given off in combustion reactions. It determines h

ow much water to add in a dilution. It determines the concentration of an unknown substance in neutralization reactions. It determines if a reaction will take place in single replacement reactions. It is used to make a solution of designated molarity.
Chemistry
2 answers:
exis [7]2 years ago
3 0
C) It determines the concentration of an unknown substance in neutralization reactions.
pishuonlain [190]2 years ago
3 0

Answer:  It determines the concentration of an unknown substance in neutralization reactions.

Explanation: Titration is defined as the process where a solution of known concentration is used to determine the concentration of an unknown solution.

Volumetric titrations are usually used for neutralization reactions.

When an acid and base reacts to give salt and water, the reaction is called as  neutralization reaction.

The normality equation used during the titration is:

N_1V_1=V_2V_2

N_1= Normality of acid solution

V_1= volume of acid solution

N_2= Normality of basic solution

V_2= Volume of basic solution

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julsineya [31]

Answer:

trans-1,3-pentadiene is more stable than 1,4-pentadiene due to presence of a conjugated double bond.

Explanation:

Here, \Delta H_{hydro}=H(hydrogenated pdt.)-H(diene)

H(hydrogenated pdt.) is same for both 1,4-pentadiene and 1,3-pentadiene as they both produce pentane after hydrogenation

H(diene) depends on stability of diene.

More stable a diene, lesser will be it's H(diene) value (more neagtive).

trans-1,3-pentadiene is more stable than 1,4-pentadiene due to presence of a conjugated double bond.

Hence, \Delta H_{hydro} is higher (less negative) for trans-1,3-pentadiene

5 0
3 years ago
NEED HELP ASAP
Thepotemich [5.8K]

I'll see what I can do here...

1) Nonmetal

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3) Hafnium

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8 0
2 years ago
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aniked [119]

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irina1246 [14]

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