How many liters of hydrogen gas are needed to react with cs2 to produce 2.50 l of ch4 at stp? 4h2(g) + cs2(l) → ch4(g) + 2h2s(g)?

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24-12-2017
Chemistry

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How many liters of hydrogen gas are needed to react with cs2 to produce 2.50 l of ch4 at stp? 4h2(g) + cs2(l) → ch4(g) + 2h2s(g)?

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kenmyna kenmyna · Answer 1 · 2018-01-04T07:51:25+01:00

kenmyna kenmyna

04-01-2018

At stp 1 mole of a gas =22.4l
calculate the number of moles of CH4 formed
2.50/22.4=0.1116moles
from the reaction above the reacting ratio of H2 to CH4 is 4:1
therefore the moles of H2 reacted is 0.1116 x4 =0.4464moles
volume of H2 =0.4464 x 22.4 l =9.99l

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