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bazaltina [42]
3 years ago
14

N2(g) + 2 O2(g) ------- 2 NO2(g) ΔH = +66.4 kJ

Chemistry
1 answer:
SpyIntel [72]3 years ago
5 0

Answer:

The answer to your question is the letter d. -132.8 kJ

Explanation:

To solve this problem, just observe that the ΔH is originally equal to +66.4 kJ.

If we change the order of the reaction, ΔH changes its sign but the value is the same.

Finally, if we duplicate the number of moles, also the ΔH increases twice.

For this problem

                           ΔH = 2(-66.4 kJ)

                          ΔH = - 132.8 kJ

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3 years ago
An intravenous infusion is to contain 15 mEq of potassium ion and 20 mEq of sodium ion in 500 mL of 5% dextrose injection. Using
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Answer:

To supply the required ions it is necessary to inject 5,6mL of 6g/30mL solution and 131,1 mL of 0,9% solution.

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To supply the potassium ion it is necessary to inject:

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I hope it helps!

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