Question

A mixture of 78.7 mL of hydrogen and 112 mL of oxygen is ignited by a...

A mixture of 78.7 mL of hydrogen and 112 mL of oxygen is ignited by a spark to form water.

(a) Does any gas remain unreacted? Which one, H2 or O2?

(b) What volume of gas (if any) remains unreacted? (Assume the same conditions before and after the reaction.)

112-78.7/2 mL H2
78.7-112 mL H2
112-78.7/2 mL  O2
0 0
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Answer #1


- Ans Reaction 2.4, 18) is + 0,(8) -> 240 (l) (a) 2 volumes of - so 2 mL of the x 1 mL of the so 78.7 mL of H₂ We have 112 m2

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