For the balanced equation shown below, if the reaction of 0.112 grams of

H2 produces 0.745 grams of H20, what is the percent yield? Fe3O4 + 4H2 -> 3Fe

+ 4H2O

74.5%

84.5%

94.5%

092.2%

Respuesta :

Answer:

The answer is 74.5%.

Explanation:

As we know that % yield=  [tex]\frac{actual yield}{theoretical yield}[/tex] x 100%.

Therefore,

Step 1 Calculate Theoretical yield:

0.112[tex]H_{2}[/tex] x   [tex]\frac{1 mol H_{2} }{2.016 g of H{2} }[/tex]    x    [tex]\frac{4 mol H_{2}O }{4 mol H_{2} }[/tex]    x  [tex]\frac{18.02 g H_{2}O }{1 mol H_{2}O}[/tex]   = 1.001 g [tex]H_{2}O[/tex]

Now Step 2

% yield   =  [tex]\frac{actual yield}{theoretical yield}[/tex] x 100% =   [tex]\frac{0.745g}{1.001g}[/tex] = 74.5%