What volume of hydrogen can be obtained by the interaction of ethyl alcohol with a mass of 13.8 g with metallic sodium?
May 1, 2021 | education
| When sodium metal interacts with ethyl alcohol (ethanol), sodium ethylate is synthesized and hydrogen gas is released. The reaction is described by the following equation:
C2H5OH + Na = C2H5ONa + ½ H2;
1 mole of alcohol reacts with 1 mole of metal. This synthesizes 1 mol of ethylate and 0.5 mol of gaseous hydrogen.
The amount of alcohol substance is.
M C2H5OH = 12 x 2 + 6 + 16 = 46 grams / mol;
N C2H5OH = 13.8 / 46 = 0.3 mol;
During this reaction, 0.3 / 2 = 0.15 mol of hydrogen will be released.
Let’s calculate its volume. To do this, multiply the amount of substance by the volume of 1 mole of gas (22.4 liters).
V H2 = 0.15 x 22.4 = 3.36 liters;
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