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OLEGan [10]
2 years ago
14

Derive third law of thermodynamics equation

Chemistry
1 answer:
Hoochie [10]2 years ago
3 0

Answer:

The Third Law of thermodynamics states that the entropy of a pure substance in a perfect crystalline state at zero temperature is zero.

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Which of the following best describe the particles present in a 2.0 M aqueous solution of Al(NO3)3?2 M Al3+(aq) and 18 M NO3-(aq
zvonat [6]

Answer:

The correct answer is: 2M Al3+(aq) and 6 M NO3-(aq)

Explanation:

Step 1: Data given

2.0 M Al(NO3)3

Step 2:

Al(NO3)3 in water will dissociate as following:

Al(NO3)3 → Al^3+ + 3NO3^-

For 1 mol of Al(NO3)3 we will have 1 mol of Al^3+ and 3 moles of NO3^-

We know that the molarity of Al(NO3)3 = 2.0 M, this means 2.0 mol/ L

The mol ratio Al(NO3)3 and Al^3+ is 1:1 so the molarity of Al^3+ is<u> 2.0 M</u>

The mol ratio Al(NO3)3 and NO3^- is 1:3 so the molarity of NO3^- is<u> 6.0M</u>

The correct answer is: 2M Al3+(aq) and 6 M NO3-(aq)

3 0
3 years ago
Can someone help me please
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True, False , and I think the last one is true
8 0
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What is the shape around each carbon atom in ethylene, H C CH ? The represents a double bond.
Nina [5.8K]

Answer:

I'm not 100% sure,but I think its trigonal pyramidal

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Why are organic compounds predominantly covalent?
erik [133]

because all organic compounds have in common the presence of carbon atoms and hydrogen atoms.

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The diagram below represents a beaker of water being heated by a flame. The arrows represent heat
Charra [1.4K]

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condensation

Explanation:

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