Question

5,6 г железа растворили в хлороводородной кислоте , получили хлорид железа ( || ) . Рассчитайте объём выделившегося водорода. Помогите срочно , пожалуйста .

Answer 1

6,6 железа в хлороводордной кислоте хлорид железа (|||)

Answer 2

I will try to answer your question in detail. 5.6 g of iron dissolved in hydrochloric acid, obtained iron chloride (II). Calculate the volume of hydrogen released. Help urgently, please.

The chemical reaction that occurs when iron reacts with hydrochloric acid is:

$$Fe + 2HCl \rightarrow FeCl_2 + H_2$$

To calculate the volume of hydrogen gas released, we need to use the following steps:

1. Find the number of moles of iron that reacted. We can use the formula:

$$n = \frac{m}{M}$$

where $n$ is the number of moles, $m$ is the mass, and $M$ is the molar mass. The molar mass of iron is 56 g/mol, so we have:

$$n_{Fe} = \frac{5.6}{56} = 0.1 \text{ mol}$$

2. Find the number of moles of hydrogen gas produced. According to the balanced equation, one mole of iron produces one mole of hydrogen gas, so we have:

$$n_{H_2} = n_{Fe} = 0.1 \text{ mol}$$

3. Find the volume of hydrogen gas at standard conditions. We can use the ideal gas law:

$$PV = nRT$$

where $P$ is the pressure, $V$ is the volume, $n$ is the number of moles, $R$ is the universal gas constant, and $T$ is the temperature. At standard conditions, the pressure is 1 atm, the temperature is 273 K, and the gas constant is 0.0821 L·atm/mol·K, so we have:

$$V_{H_2} = \frac{n_{H_2}RT}{P} = \frac{0.1 \times 0.0821 \times 273}{1} = 2.24 \text{ L}$$

Therefore, the volume of hydrogen gas released is 2.24 L.

I hope this helps you with your question. You can find more information about this topic in the web search results [here](https://online-otvet.ru/himia/5ceaa27b96f4e19a295d8ca3), [here](https://online-otvet.ru/himia/5ceaa27896f4e19a295d888b), and [here](https://uchi.ru/otvety/questions/56-g-chistogo-zheleza-rastvorili-v-100-ml-10-nogo-rastvora-solyanoy-kisloti-p-105-g-ml-vi).