Question

При взаимодействии пропил новой кислоты с одноатомным спиртом массой 16 г в присутствии серной кислоты было получено 37,4 г сложного эфира с выходом 85%.Определить структурную формулу эфира

Answer 1

С2H5COOH+ROH=[H2SO4]=C2H5COOR+H2O
Вычисляем массу эфира при 100% выходе
m=37.4*100/85=44
По уравнению реакции кол-во вещества спирта и эфира равны
Пусть молярная масса R- равна х, тогда
16/(х+17)=44/(73+х)
Откуда находим, что х=15
Такая молярная масса соответствует радикалу -CH3
Следовательно, спирт метиловый CH3-OH

Answer 2

Determining the Structural Formula of the Ether

To determine the structural formula of the ether formed when propyl alcohol (C3H7OH) reacts with a monatomic alcohol with a mass of 16 g in the presence of sulfuric acid (H2SO4), we can use the given information about the mass of the ether obtained and the yield.

According to the information provided, 37.4 g of the complex ether was obtained with a yield of 85%. This means that 85% of the theoretical maximum amount of ether was obtained.

To calculate the theoretical maximum amount of ether that could be obtained, we can use the molar masses of the reactants and products involved.

The molar mass of propyl alcohol (C3H7OH) can be calculated as follows: - Carbon (C): 3 atoms x 12.01 g/mol = 36.03 g/mol - Hydrogen (H): 8 atoms x 1.01 g/mol = 8.08 g/mol - Oxygen (O): 1 atom x 16.00 g/mol = 16.00 g/mol - Total molar mass of propyl alcohol: 36.03 g/mol + 8.08 g/mol + 16.00 g/mol = 60.11 g/mol

The molar mass of the monatomic alcohol with a mass of 16 g can be calculated as follows: - Mass of the monatomic alcohol: 16 g - Molar mass of the monatomic alcohol: 16 g/mol

To calculate the theoretical yield of the ether, we can use the stoichiometry of the reaction. Since the reaction involves the formation of a complex ether, the stoichiometry may vary depending on the specific reactants and reaction conditions. Unfortunately, the provided search results do not provide specific information about the reaction between propyl alcohol and a monatomic alcohol in the presence of sulfuric acid.

Therefore, without additional information about the specific reaction conditions and the structure of the monatomic alcohol, it is not possible to determine the exact structural formula of the ether formed.