When an airbag expands in a vehicle, sodium azide reacts with potassium nitrate and silicon dioxide, releasing nitrogen gas and sodium potassium silicate (fine glass powder) 6 NaN3+ 2 KNO3 + 4 SiO210 N2+ 2 NaKSiO3+ 2 Na2SiO3 + 02 To conduct a similar reaction, 2.0 mol of NaN3, 1.0 mol of KNO3 and 1.8 mol of SiO2 are added. Which one is the limiting reactant? a) N2 b) O2 c) KNO3 d) SiO2

NaN₃.

Explanation:

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In this case, for the reaction:

We can identify the limiting reactant by computing the yielded moles of nitrogen product by each reactant as shown below:

In such a way, since 2.0 moles of sodium azide yields the least moles of nitrogen, we infer it is the limiting reactant so the answer would be NaN₃ yet it is not on the options.

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in chemistry, a solution’s concentration is how much of a dissolvable substance, known as a solute, is mixed with another substance, called the solvent. the standard formula is c = m/v, where c is the concentration, m is the mass of the solute dissolved, and v is the total volume