How many liters of hydrogen are released when 46 grams of ethyl alcohol interacts with potassium?
April 25, 2021 | education
| When potassium metal interacts with ethyl alcohol (ethanol), potassium ethylate is synthesized and hydrogen gas is released. The reaction is described by the following equation:
C2H5OH + K = C2H5OK + 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 = 46/46 = 1 mol;
During this reaction, 1/2 = 0.5 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 = 0.5 x 22.4 = 11.2 liters;
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