What is the formula for “ammonium sulfite”

(NH₄)₂SO₃

Explanation:

Data Given:

formula for "ammonium sulfite”

Solution

Ammonium sulfite consist of following atoms

Nitrogen = N

Hydrogen = H

Sulfur = S

Oxygen = O

Now we will look for the symbols of ammonium and sulfite

Ammonium = NH₄⁺

ammonium consists one nitrogen and 4 hydrogen atoms. it have overall 1 positive charge.

Sulfite = SO₃²⁻

it have one sulfur and 2 oxygen atoms. the overall charge is 2-.

Now we will write Both ammonium and sulfite ions together. the charges will are the combining power and will be written at the base of the alternate position formula unit.

      (NH₄)₂SO₃

So 2 ammonium ions combine with one sulfite ion.

So the formula for “ammonium sulfite” is (NH₄)₂SO₃

as given the equation is

2al + 6 hcl > 2 alcl3 + 3 h2(g)

as per equation two moles of aluminum reacts with six moles of hcl to give two moles of alcl3 and three moles of hydrogen gas

given: three moles of al are present and 7 moles of hcl

for three moles of aluminum nine moles of hcl will be required

however as 7 moles of hcl are present so the limiting reagent is hcl

hcl is going to decide the number of moles of product formed

when six moles of hcl are present = 3 moles of h2 are formed

when one mole of hcl is present == 3/6 mole sof h2 will be formed

when 7 moles of hcl are present = 3 x 7/ 6 moles of h2 will be formed = 3.5 moles of h2