Question

What is the concentration of A2 after 30 seconds?

A concentration-time study of the gas phase reaction 2 A3→ 3 A2 produced the data in the table below.Time (s)A3A204.00 × 10–40102.00 × 10–43.00 × 10–4201.00 × 10–44.50 × 10–4305.00 × 10–5?What is the concentration of A2 after 30 seconds?