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Anon25 [30]
3 years ago
15

Use the following equation to answer the questions below.

Chemistry
1 answer:
sertanlavr [38]3 years ago
4 0

Answer:

Explanation:

Here is ur answer what you wanna do first is calculate the first and second numbers and letters this should be ur answer = -394 + 2 x (-242) - (-75) + 2 x 0 = -803 kJ/mol

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What would be the total volume of the new solution when it is changed from 0.2 M to 0.04 M?
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The question is incomplete.

You need two additional data:

1) the original volume
2) what solution you added to change the volume.

This is a molarity problem, so remember molarity definition and formula:

M = n / V in liters: number of moles per liter of solution

To give you the key to answer this kind of questions, supppose the original volumen was 1 ml and that you added only water (solvent).

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For the final solution:

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Change to ml ⇒ 0.05 l × 1000 ml / l = 50 ml.  This would be the answer for the hypothetical problem that I assumed for you.

I hope this gives you all the cues you need to answer similar problems about molarity.
6 0
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What type of heat transfer is a beaker on a hot plate an example of?
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Explanation:

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Answer:

Mechanical Energy = A

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Explanation:

Hope this helps you :) If any are wrong, I'm very sorry.

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