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3 years ago

A long chain of hydrocarbon bonded to cooh is a ________ acid.

Chemistry

2 answers:

vodomira [7]3 years ago

6 0

A long chain of hydrocarbon bonded to COOH is a FATTY acid.

prisoha [69]3 years ago

6 0

Answer: Option (d) is the correct answer.

Explanation:

A fatty acid is defined as a long chain of hydrocarbons that consists of a carboxylic group, that is, COOH group at the end of the chain.

General formula of a fatty acid is $R-(CH_{2})_{n}-COOH$ where n is mostly an even number in many cases.

Fatty acids are also known as aliphatic monocarboxylic acid.

For example, $C_{17}H_{35}COOH$ is the formula of stearic acid which is a fatty acid.

Thus, we can conclude that a long chain of hydrocarbon bonded to cooh is a fatty acid.

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How many calories of heat are necessary to raise the temperature of 319.5 g of water from 35.7 °C

rjkz [21]

20600Cal

Explanation:

Given parameters:

Mass of water = 319.5g

Initial temperature = 35.7°C

Final temperature = 100°C

Unknown:

Calories needed to heat the water = ?

Solution:

The calories is the amount of heat added to the water. This can be determined using;

H = m c Ф

c = specific heat capacity of water = 4.186J/g°C

H is the amount of heat

Ф is the change in temperature

H = m c (Ф₂ - Ф₁)

H = 319.5 x 4.186 x (100 - 35.7) = 85996.56J

Now;

1kilocalorie = 4184J

85996.56J to kCal; $\frac{85996.56}{4184}$ = 20.6kCal = 20600Cal

learn more:

Specific heat brainly.com/question/3032746

#learnwithBrainly

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