Question

Both Jacques Charles and Joseph Louis Guy-Lussac were avid balloonists. In his original flight in 1783, Jacques Charles used a balloon that contained approximately 31100 L of H2. He generated the H2 using the reaction between iron and hydrochloric acid: Fe(s)+2HCl(aq)→FeCl2(aq)+H2(g)
How many kilograms of iron were needed to produce this volume of H2 if the temperature was 21 ∘C? (For simplicity, assume that the pressure experienced by the balloon will be 1.00 atm.)

Answer 1

Answer:

$m_{Fe}=71.982 kg$

Explanation:

First of all, we need  to calculate the moles of H2. Assuming the H2 is an ideal gas:

$n=\frac{P*V}{T*R}$

$n=\frac{1atm*31100L}{294K*0.082 L*atm*mol^{-1}*K^{-1}}$

$n=1290 mol$

Now, to produce 1 mol of H2 is required 1 mol of Fe:

$m_{Fe}=n*M=1290mol*\{55.8 g}{mol}$

$m_{Fe}=71982 g=71.982 kg$

Answer 2

The study of chemicals and bonds is called chemistry. There are two types of elements are there and these are metals and nonmetals.

The correct answer is 71.982kg.

What is ideal gas law?

• The ideal gas law, also called the general gas equation, is the equation of the state of a hypothetical ideal gas.
• It is a good approximation of the behavior of many gases under many conditions, although it has several limitations.

The formula used as:-

$n=\frac{P*V}{T*R} \\\\n=\frac{1*31100}{294*0.082} \\\\\\n=1290moles$

The mass will be:-

$M= n*M\\1290*55.8\\\\=71.982$

Hence, the correct answer is 71.982.

For more information about the moles, refer to the link:-

https://brainly.com/question/16759172