Question

Explain how to convert a mass of compound A to a mass of compound D in words with no equations using the following reaction 2A + 4B -> C + 3D​

Answer 1

Answer:

Explanation:

The given reaction equation is:

                2A + 4B → C + 3D

We know the mass of compound A in the reaction above. We are to find the mass of compound D.

We simply work from the known mass to calculate the mass of the unkown compound D

Using the mole concept, we can find the unknown mass.

Procedures

• We first find the molar mass of the compound A from the atomic units of the constituent elements.
• We then use the molar mass of A to calculate its number of moles using the expression below:  

            Number of moles of A = $\frac{mass of A}{molar mass of A}$

• Using the known number of moles of A, we can work out the number of moles of D.

           From the balanced equation of the reaction, it is shown that:

         2 moles of compound A was used up to produced 3 moles of D

  Then $\frac{3}{2}$ x number of moles of A would give the number of moles of D

• Now that we know the number of moles of D, we can find its mass using the expression below:

             Mass of D = number of moles of D x molar mass of D