Question

Fe2/SO4/3. Fe Cl3 w (Fe)

Answer 1

Fe2(SO4)3

w(Fe) = ?

1)Mr(Fe2(SO4)3) = 2*56+3*32+12*16 = 112 + 96 + 192 = 400

w(Fe) = 2*56/400 = 0,28 или 28%

 

FeCl3

Mr = 56+3*35,5 = 162,5

w(Fe) = 56/162,5 = 0,34 или 34%

 

Answer 2

Fe2(SO4)3 is the chemical formula for iron(III) sulfate. It is an inorganic compound that consists of two iron (Fe) ions bonded to three sulfate (SO4) ions. Iron(III) sulfate is a yellowish crystalline solid that is soluble in water.

Fe represents the element iron, which is a transition metal. Iron has an atomic number of 26 and is commonly found in the Earth's crust. It is known for its strength and ability to form various compounds.

Cl3 represents the compound chlorine (Cl) in its elemental form. Chlorine is a halogen that has an atomic number of 17. It is a greenish-yellow gas at room temperature and is known for its strong oxidizing properties.

Fe + Cl3 represents a chemical reaction between iron and chlorine. When iron reacts with chlorine, it forms iron(III) chloride, which has the chemical formula FeCl3. Iron(III) chloride is a dark brown solid and is commonly used as a catalyst in various chemical reactions.

w + (Fe) represents a reaction involving water (H2O) and iron. When iron reacts with water, it undergoes a process called corrosion, which results in the formation of iron(III) oxide (Fe2O3). Iron(III) oxide is commonly known as rust and is a reddish-brown solid.

In summary:

- Fe2(SO4)3 is iron(III) sulfate, an inorganic compound consisting of two iron ions bonded to three sulfate ions. - Fe represents the element iron. - Cl3 represents the compound chlorine in its elemental form. - Fe + Cl3 represents a reaction between iron and chlorine, resulting in the formation of iron(III) chloride. - w + (Fe) represents a reaction between water and iron, resulting in the formation of iron(III) oxide (rust).