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QUESTION

The equation for the combustion of glucose is: C6H12O6(s) + 6O2(g) --&gt;6CO2(g) + 6H2O(g). How many grams of H2O will be produced when 8.064g of glucose is burned?

##"4.838 g H"_2"O"## will be formed from the combustion of ##"8.064 g C"_6"H"_12"O"_6"##.

##"C"_6"H"_12"O"_6" + 6O"_2"####rarr####"6CO"_2" + 6H"_2"O"##

Molar Masses of Glucose and Water ##"C"_6"H"_12"O"_6":####"180.15588 g/mol"## ##"H"_2"O":####"18.01528 g/mol"##https://pubchem.ncbi.nlm.nih.gov

1. Divide ##"8.064 g"## of glucose by its molar mass to get moles glucose.
2. Multiply times the mol ratio ##(6"mol H"_2"O")/(1"mol 8C"_6"H"_12"O"_6")## from the balanced equation to get moles water.
3. Multiply times the molar mass of ##"H"_2"O"## to get mass of water.

##8.064cancel("g C"_6"H"_12"O"_6)xx(1cancel("mol C"_6"H"_12"O"_6))/(180.15588cancel("g C"_6"H"_12"O"_6))xx(6cancel("mol H"_2"O"))/(1cancel("mol C"_6"H"_12"O"_6))xx(18.01528"g H"_2"O")/(1cancel("mol H"_2"O"))="4.838 g H"_2"O"##