Question

СРОЧНО!!!ПОМОГИТЕ ПОЖАЛУЙСТА!!!!при нагревании 60 г одноатомного спирта, содержащего 60% углерода по массе, с концентрированной серной кислотой образовалось 22, 4 л газа.определите молярную формулу спирта

Answer 1

Спирт пропанол
n(газа)=22,4л / 22,4л/моль=1моль газа
n(газа)=n(спирта)=1моль
M(спирта)=m/n=60г/1моль=60г/моль
60% от 60г = 60г*60%/100 =36г
n(углерода)=m/M=36г/12г/моль=3моль
Значит на один моль одноатомного спирта приходится 3 моль углерода
С3H7OH - пропанол
СН3-СН2-СН2-OH-----------CH3-CH=CH2 + H2O
Над стрелкой конц серная кислота и нагревание
получается пропен и вода , реакция дегидратация

Answer 2

Determining the Molecular Formula of the Alcohol

To determine the molecular formula of the alcohol, we need to analyze the given information.

We are given that 60 grams of a monatomic alcohol, which contains 60% carbon by mass, reacts with concentrated sulfuric acid to produce 22.4 liters of gas.

To find the molecular formula, we need to calculate the number of moles of the alcohol and the empirical formula. Then, we can use the molar mass of the empirical formula to determine the molecular formula.

Calculating the Moles of Alcohol

To calculate the moles of alcohol, we need to determine the mass of carbon in the alcohol. Since the alcohol is 60% carbon by mass, we can calculate the mass of carbon as follows:

Mass of carbon = 60% of 60 grams = 0.6 * 60 grams = 36 grams

Next, we need to convert the mass of carbon to moles using the molar mass of carbon (12.01 g/mol):

Moles of carbon = Mass of carbon / Molar mass of carbon = 36 grams / 12.01 g/mol = 2.998 moles (approximately 3 moles)

Since the alcohol is monatomic, the number of moles of alcohol is equal to the number of moles of carbon.

Moles of alcohol = 3 moles

Determining the Empirical Formula

To determine the empirical formula, we need to find the ratio of the atoms in the alcohol. Since we know that the alcohol is monatomic, the empirical formula will be the same as the molecular formula.

Determining the Molecular Formula

To determine the molecular formula, we need to know the molar mass of the empirical formula. Unfortunately, the molar mass of the empirical formula is not provided in the given information. Therefore, we cannot determine the molecular formula without additional information.

Please provide the molar mass of the empirical formula or any other relevant information to proceed with determining the molecular formula of the alcohol.