How many moles of methane are produced when 25.1 moles of carbon dioxide gas react with excess hydrogen

The moles of methane that are produced when 25.1 moles of CO2 gas react with excess H2 is 25.1 moles

calculation

write the equation for the reaction

that is CO2 +4 H2 → CH4 +2H2O

from the equation above the mole ratio between CO2 to CH4 is 1:1 therefore the moles of CH4 is also= 25.1 moles

so here we go

atomic mass

239 + 1 = y + 134 + 3 combine like terms

240 = y + 137             subtract 137 from both terms

240 - 137 = y

103 = y

atomic number

94 = z +54 + 0

94 = z + 54               subtract 54 from both sides.

40 = z

answer