What is the limiting reagent when 3.1 mol of so2 react with 2.7 mol of o2
according to the equation: 2so2(g)+o2(g) --> 2so3(g)

The number of moles of SO₃ produced by  SO₂  are less so it is limiting reactant.

Explanation:

Given data:

Number of moles of SO₂ = 3.1 mol

Number of moles of O₂ = 2.7 mol

Limiting reactant = ?

Solution:

Chemical equation;

2SO₂ + O₂ → 2SO₃

Now we will compare the moles of SO₃ with O₂  and  SO₂.

                      SO₂         :       SO₃

                         2           :        2

                        3.1          :       3.1

                       O₂           :        SO₃

                          1            :          2

                         2.7          :         2×2.7 = 5.4 mol

The number of moles of SO₃ produced by  SO₂  are less so it is limiting reactant.

for step 7 table c on the lab "newtons law of action"   the average time it took the car to travel .25 meters   was 1.92 seconds.

the average time it took the car to travel 0.50 meters was 2.61 seconds

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