## General, Organic, and Biological Chemistry: Structures of Life (5th Edition)

a. Find the conversion factors, and calculate the amount of $O_2$ moles $H_2$ and $O_2$: $$\frac{ 2 \space moles \space H_2 }{ 1 \space mole \space O_2 } \space and \space \frac{ 1 \space mole \space O_2 }{ 2 \space moles \space H_2 }$$$$2.0 \space moles \space H_2 \times \frac{ 1 \space mole \ O_2 }{ 2 \space moles \space H_2 } = 1.0 \space mole \space O_2$$ b. Find the conversion factors, and calculate the amount of $H_2$ moles $O_2$ and $H_2$: $$\frac{ 1 \space mole \space O_2 }{ 2 \space moles \space H_2 } \space and \space \frac{ 2 \space moles \space H_2 }{ 1 \space mole \space O_2 }$$ $$5.0 \space moles \space O_2 \times \frac{ 2 \space moles \ H_2 }{ 1 \space mole \space O_2 } = 10. \space moles \space H_2$$ c. Find the conversion factors, and calculate the amount of $H_2O$ moles. $O_2$ and $H_2O$: $$\frac{ 1 \space mole \space O_2 }{ 2 \space moles \space H_2O } \space and \space \frac{ 2 \space moles \space H_2O }{ 1 \space mole \space O_2 }$$ $$2.5 \space moles \space O_2 \times \frac{ 2 \space moles \ H_2O }{ 1 \space mole \space O_2 } = 5.0 \space moles \space H_2O$$