How many moles of nitrogen are needed to completely convert 6.34 mol of hydrogen?

n = 2.11 moles

Explanation:

As we know by the reaction of hydrogen and nitrogen

so here from above equation we know that for complete conversion of 3 moles of hydrogen we need 1 mole of nitrogen

so here we know that 6.34 moles of hydrogen is available

so we require 1/3 times of moles of nitrogen for complete reaction

so number of moles of hydrogen will be

so here we can say it requires 2.11 moles of nitrogen for complete reaction of 6.34 moles of hydrogen

acceleration = (change in speed) / (time for the change)

change in speed = (20-120)= -100 m/s.

1.5 min = 90 sec

acceleration = -100/90 = -1.11 m/s^2.

we don't care about the 150kg or the 2,500 meters. they don't make any difference.

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c

explanation: