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Nostrana [21]
3 years ago
15

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

Physics
2 answers:
Sergeu [11.5K]3 years ago
5 0

Answer:

n = 2.11 moles

Explanation:

As we know by the reaction of hydrogen and nitrogen

N_2 + 3H_2 --> 2NH_3

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

n = \frac{1}{3} \times 6.34

n = 2.11 moles

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

____ [38]3 years ago
4 0
If we use the equation:
N2 + 3H2 --> 2NH3
Then
1 mol of Nitrogen required 3 moles of Hydrogen
x mols : 6.34mols
X = 6.34/3
X = 2.11 moles of Nitrogen are required.
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A 26.0 kg beam is attached to a wall with a hinge while its far end is supported by a cable such that the beam is horizontal. If
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Answer:

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Explanation:

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Now, there are 3 vertical forces acting on the beam. These are;

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- The vertical components of the tension in the cable.

-The force that hinge exerts on the beam are the upward forces.

Hence, for the beam to remain horizontal, the sum of the upward forces must be equal to the weight of the beam.

For us to determine the vertical component of the tension in the cable, we will do a torque problem. Let the pivot point be at the hinge. Let’s assume that the length of the beam is L. The vertical component of the tension in the cable will produce clockwise torque while the weight of the beam will produce counter clockwise torque.

Tbus;

Clockwise torque = TL sin 61

Since the center of mass of beam is at the middle of the beam, the distance from the hinge to the weight of the beam is L/2.

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145.82 + F = 255.06

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