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goblinko [34]
2 years ago
12

The probability?????????????????

Chemistry
1 answer:
olga55 [171]2 years ago
7 0
Answer: 4/20

Explanation:
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How much heat (in Joules) is needed to raise the temperature of 257g of ethanol (cethanol=2.4 J/g°C) by 49.1°C?
Sonbull [250]

Answer:

Q = 30284.88 j

Explanation:

Given data:

Mass of ethanol = 257 g

Cp = 2.4 j/g.°C

Chnage in temperature = ΔT = 49.1°C

Heat required = ?

Solution:

Specific heat capacity:

It is the amount of heat required to raise the temperature of one gram of substance by one degree.

Formula:

Q = m.c. ΔT

Q = amount of heat absorbed or released

m = mass of given substance

c = specific heat capacity of substance

ΔT = change in temperature

Now we will put the values in formula.

Q = 257 g× 2.4 j/g.°C × 49.1 °C

Q = 30284.88 j

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2 years ago
What is the definition of the word: Property (the scientific definition A makes up matter; makes up the world around us B an obj
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Answer:

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3 years ago
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aleksandr82 [10.1K]

The atomic structure of the acetic acid is:

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                        l

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We can see from the structure that there are 2 interior atoms, and these are all Carbon atoms.


The geometry is:

Tetrahedral on First Carbon

Trigonal Planar on Second Carbon

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For the reaction C2H5OH + O2 --> 3CO2 + 3H2O
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The reaction given above is a combustion reaction. All combustion reactions are exothermic, meaning they give off heat when they react,
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The body stores lipids ingested as fat and uses this energy when needed.
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