Solution: write down the reaction equation for the interaction of sodium with glycerin.
2С3Н5 (ОН) 3 + 2Na = 2CH2O – Na – CHOH – CH2 – OH + H2 – substitution reaction, glycerin interacts with metallic sodium with an explosion, while hydrogen is released;
It follows from the reaction equation that 2 mol of glycerol, interacting with sodium, form X mol of hydrogen.
Let’s make the proportion:
2 mol С3Н5 (ОН) 3 – х mol Н2
2 mol 1 mol X mol (H2) = 2 * 1/2 = 1 mol
Determine the volume of hydrogen:
V (H2) = 1 * 22.4 = 22.4 liters (according to Avogadro’s law)
Answer: 22.4 liters of hydrogen are released.
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.