The fermentation of glucose C_6 H_12 O_6 produces ethanol, C_2 H_5 OH and CO_2.

Question

The fermentation of glucose C_6 H_12 O_6 produces ethanol, C_2 H_5 OH and CO_2. The equation for the reaction is as follows: C_6 H_12 O_6 rightarrow 2C_2 H_5 OH +2CO_2. How many moles of CO_2 are produced when 0.400 moles of C_6 H_12 O_6 are used? 0.200 moles 0.400 moles 0.800 moles 2.00 moles The fermentation of glucose C_6 H_12 O_6 produces ethanol, C_2 H_5 OH and Co_2. The equation for the reaction is as follows: C_6 H_12 O_6 rightarrow 2C_2 H_5 OH +2CO_2. How many grams of C_2 H_5 OH are produced when 0.400 moles of C_6 H_12 O_6 are used? 18.4 g 36.9 g 46.1 g 92.2 g

Explanation / Answer

7)

C6H12O6    -----------------> 2 C2H5OH   + 2 CO2

   1 mol                                      2 mol           2 mol

0.40 mol                                                          ??

1 mol C6H12O6    -------------> 2 mol CO2

0.40 mol C6H12O6    ----------->   ??

moles of CO2 = 0.800 mol

8)

1 mol C6H12O6   ------------> 2 mol C2H5OH

0.40 mol           ------------->    ??

moles of C2H5OH   = 0.4 x 2 = 0.800

mass of C2H5OH = 0.8 x 46

mass of C2H5OH produced = 36.9 g

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