A gas sample contains 16.0 g of CH4, 16.0 g of O2, 16.0 g of SO2, and 33.0 g of CO2. What is the total number of moles of gas in the sample? :
A) 2.50 moles
B) 3.00 moles
C) 2.75 moles
D) 2.25 moles
E) 4.00 moles

Question

A gas sample contains 16.0 g of CH4, 16.0 g of O2, 16.0 g of SO2, and 33.0 g of CO2. What is the total number of moles of gas in the sample? :
A) 2.50 moles
B) 3.00 moles
C) 2.75 moles
D) 2.25 moles
E) 4.00 moles

anonymous · Answer

explanation of answer please

chmvijay · Answer

hey just covert the each gas molecule into moles using the equation
 moles of gas =gram of gas /Molecular weight of gas
for example let us take CH4
moles of CH4= 16/16 =1mole
moles of  O2 =16/32=0.5 mole
just like above find for other two SO2 and CO2 and
add all moles of gases u have worked out
total number of moles of gas = moles of CH4+Moles of O2+ moles of SO2 + moles of CO2
                                               = 1+0.5+   +