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faust18 [17]
3 years ago
9

A student collects hydrogen and oxygen gas by using electrolysis to decompose water. Assuming the pressure and temperature of th

e gases
are held constant, how much Hydrogen gas is formed when 23.0 mL of oxygen gas is formed?
2 H20 -> 2 H2 + O2 (Show your work.)
Chemistry
1 answer:
sasho [114]3 years ago
4 0

may be I'm sure ok bahala na kyng

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<span>Actually, the heat of reaction hrxn s calculated by taking the sum of the heats of formation of the products minus the sum of the heats of formation of the reactants. However, at heat of formations of pure elements at atmospheric conditions is zero, therefore the hf of N2 is not important since it is zero anyway.</span>

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Let us assume that the ring is a size 7 ring, which has a circumference of 54.3 millimeters. Converting this to centimeters, the circumference of the ring is:

54.3 mm = 5.43 cm

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The mass of the strand is 1.76 x 10⁻¹² grams
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Hey there!


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