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kirill [66]
2 years ago
10

Consider a 180. g sample of water. The specific heat of water is 1.00 cal(g · °C) or 4.18 J/(g: °0).

Chemistry
1 answer:
ludmilkaskok [199]2 years ago
3 0

Answer:

Explanation:

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Question

Consider a 180. g sample of water. The specific heat of water is 1.00 cal(g · °C) or 4.18 J/(g: °0).

(a) How much energy, in calories, is released as the water is cooled from 55.0°C to 12.0°C? (Enter your

answer in scientific notation.)

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The standard unit for concentration, Molarity (M) can also be written as?
emmasim [6.3K]

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In order to model a chemical change in the laboratory, a student wants to select the appropriate measuring apparatus to record t
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7 0
3 years ago
wo reactions and their equilibrium constants are given. A + 2 B − ⇀ ↽ − 2 C K 1 = 2.57 2 C − ⇀ ↽ − D K 2 = 0.226 A+2B↽−−⇀2CK1=2.
Papessa [141]

<u>Answer:</u> The value of equilibrium constant for the net reaction is 11.37

<u>Explanation:</u>

The given chemical equations follows:

<u>Equation 1:</u>  A+2B\xrightarrow[]{K_1} 2C

<u>Equation 2:</u>  2C\xrightarrow[]{K_2} D

The net equation follows:

D\xrightarrow[]{K} A+2B

As, the net reaction is the result of the addition of first equation and the reverse of second equation. So, the equilibrium constant for the net reaction will be the multiplication of first equilibrium constant and the inverse of second equilibrium constant.

The value of equilibrium constant for net reaction is:

K=K_1\times \frac{1}{K_2}

We are given:

K_1=2.57

K_2=0.226

Putting values in above equation, we get:

K=2.57\times \frac{1}{0.226}=11.37

Hence, the value of equilibrium constant for the net reaction is 11.37

6 0
3 years ago
What is the number of moles of 27.6 grams of lithium
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Lithium's atomic weight is 6.94 g/mol.

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Need anything else?

6 0
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How would a geologist use absolute dating to determine the age of sedimentary layer?
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6 0
3 years ago
Read 2 more answers
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