Question

При взаимодействии 13,8г предельного одноатомного спирта с 24г оксида меди (2) был получен альдегид. Определите формулу спирта.

Answer 1

CnH2n+2O+CuO=CnH2nO+Cu+H2O
13.8/14n+18=24/80
n=2
C2H5OH - этанол

Answer 2

Interaction of 13.8g of a monatomic alcohol with 24g of copper oxide (II) resulted in the formation of an aldehyde. Determine the formula of the alcohol.

To determine the formula of the alcohol, we need to analyze the given information and use the principles of stoichiometry.

Let's break down the problem step by step:

1. We have 13.8g of a monatomic alcohol (let's call it A) and 24g of copper oxide (II) (CuO). 2. The reaction between the alcohol and copper oxide (II) results in the formation of an aldehyde (let's call it B).

To find the formula of the alcohol (A), we need to calculate the molar ratio between the alcohol and the aldehyde formed.

Here's the balanced chemical equation for the reaction:

A + CuO → B + Cu

From the equation, we can see that the molar ratio between the alcohol (A) and the aldehyde (B) is 1:1.

Now, let's calculate the number of moles of the alcohol (A) and the aldehyde (B) using their respective masses and molar masses.

The molar mass of copper oxide (CuO) is 79.55 g/mol.

1. Number of moles of CuO: - Mass of CuO = 24g - Molar mass of CuO = 79.55 g/mol - Number of moles of CuO = Mass of CuO / Molar mass of CuO

2. Number of moles of aldehyde (B): - Since the molar ratio between the alcohol (A) and the aldehyde (B) is 1:1, the number of moles of the aldehyde (B) will be the same as the number of moles of the alcohol (A).

3. Number of moles of the alcohol (A): - Number of moles of the alcohol (A) = Number of moles of CuO

Now, let's calculate the number of moles:

1. Number of moles of CuO: - Number of moles of CuO = 24g / 79.55 g/mol

2. Number of moles of the alcohol (A): - Number of moles of the alcohol (A) = Number of moles of CuO

Since we don't have the molar mass of the alcohol (A), we cannot directly calculate the formula of the alcohol. However, we can determine the molar ratio between the elements in the alcohol by comparing the number of moles of the alcohol (A) and the aldehyde (B).

Based on the given information, we know that the alcohol (A) and the aldehyde (B) have the same molar ratio, which is 1:1. This means that the alcohol (A) contains the same number of carbon, hydrogen, and oxygen atoms as the aldehyde (B).

Unfortunately, the given information does not provide enough details to determine the specific formula of the alcohol (A). We would need additional information, such as the molar mass or the molecular formula of the aldehyde (B), to determine the formula of the alcohol (A).

Please provide more information if available, and I will be happy to assist you further.

Note: The information provided in this response is based on the given problem statement and the principles of stoichiometry.