9. Given the following reaction: 2NO(g) + O2(g) → 2NO2 (g) How many liters of gaseous oxygen are needed
to produce 4.50 L of gaseous nitrogen dioxide, if both gases are being measured at STP?

2.25L of O2

Explanation:

2NO(g) + O2(g) → 2NO2 (g)

From the equation,

1L of O2 produced 2L of NO2.

Therefore, yL of O2 will produce 4.50L of NO2 ie

yL of O2 = 4.50/2 = 2.25L

Therefore, 2.25L of O2 are needed.

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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

hope this : )