What Volume Of $\mathrm { H } _ { 2 } \mathrm { O } ( g )$

question 40

Multiple Choice

What volume of $\mathrm { H } _ { 2 } \mathrm { O } ( g )$ measured at STP is produced by the combustion of 6.50 g of natural gas $\left( \mathrm { CH } _ { 4 } \right)$ in excess oxygen? (R = 0.08206 L?atm/mol?K) $\mathrm { CH } _ { 4 } ( g ) + 2 \mathrm { O } _ { 2 } ( g ) \rightarrow \mathrm { CO } _ { 2 } + 2 \mathrm { H } _ { 2 } \mathrm { O } ( g )$

• A) 4.54 L
• B) 20 L
• C) 9.08 L
• D) 18.2 L
• E) 3.25 L

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