Give the percent yield when 28.16 g of co2 are formed from the reaction of 4.000 moles of c8h18 with 4.000 moles of o2.

The equation is 2C8H14+23O2=16CO2+14H2O. The theoretical yield of CO2 is 4/23*16*44=122.43 g. The percent yield is 28.16/122.43*100%=23.0%.

Mg-26 and mg-24 are pair of isotopes. isotopes are defined as atoms of the same element having same atomic number but different mass number. i hope that was .