Activity 12 Part II. Mass Calculations in Stoichiometry Write and balance the ch

Question

Activity 12 Part II. Mass Calculations in Stoichiometry Write and balance the chemical reaction based upon the atomie-scale pictures. Complete the table of actual Name 1. values of each reactant and product present. ? oxygen O - sulfur Balanced Reaction Species Present in Initial amounts of each Reaction Amount of change in each Final amounts of each species (first picture) species (+/- species (second pictuge) In the following set of questions, you will need to complete several calculations that lead to the ability to answer? Given the equation in which sulfuric acid, H250 reacts with sodium hydroxide, NaOH to form sodium sulfate, hove determine how many grams of sodium sulfate will be formed the final question. Each must be completed and then logic can be used to solve the problem. 2. NazS04, and water. Write the balanced chemical reaction. Answer: NaOH + H2S04H20+NazS0 udroxide. (The following steps

Explanation / Answer

Hi!

Looking and the picture and the corresponding symbols, we can easily interpret that :

5 molecules of O2 combine with 4 molecules of SO2 to form 3 molecules of O2 and 4 molecules of SO3 .

So, the balanced reaction would be :

5O2 + 4SO2 --> 3O2 + 4SO3

Which on rearranging gives :

O2 + 2SO2 --> 2SO3

And the final table will be as follows :

Species present

in reaction

Initial amount of

each species

Amount of change in

each species

Final amount of

each species

Species present

in reaction

Initial amount of

each species

Amount of change in

each species

Final amount of

each species

O2 5 -2 3 SO2 4 -4 0 SO3 0 +4 4

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