Answer to Question #251734 in General Chemistry for Ellea

Question

2 C₂H_6(g)          +        2 O_2(g) =  CO_2(g)    +        2 H₂O_(I)

1.   How many grams of H₂O will be produced by 58.2 L of CH₄ at STP? Assume an excess of O₂.

Answer 1

Molar mass of CH4= 16.04 g/mol

58.2/22.4= 2.598moles

Molar mass of H2O= 18.01528 g/mol

Mole ratio 2:2

= 2.598×18.01528= 46.81g