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SCORPION-xisa [38]

3 years ago

9

How many grams of H2 are needed to react with 47 grams of N2 to produce 200 grams of NH3?

1 answer:

Oduvanchick [21]3 years ago

5 0

I think it’s law conservation of mass.

So 200g(NH3)-47g(N2)=153g(H2)

H2+N2—->NH3

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Although both N2 and 02 are naturally present in the air we breathe, high levels of NO and NO2 in the atmosphere occur mainly in

joja [24]

Answer:

(a) Increasing the temperature adds heat which is a reactant shifting the equilibrium rightwards.

(b) Pressure has no effect since the change in the number of moles is zero.

Explanation:

Hello,

In this case, one could represent the given reaction as:

$N_2(g)+O_2(g)+ \Delta _rH \leftrightarrow 2NO$

Since it is endothermic. Thus, solving the (a) statement, one identifies the heat as a reagent, that is why the reaction cools down as it progress, therefore, by increasing the temperature, heat is added, that is, a reagent is added, which shifts the equilibrium rightwards, in other words, more NO is produced so its concentration increases.

Furthermore, for the (b) statement, since the change in the number of moles is zero, based on the stoichiometric coefficients as shown below:

$\Delta \nu =2-1-1=0$

Such value implies that the pressure has no effect on the concentration, taking into account the following form of the law of mass action:

$Kp=Kc(RT)^{\Delta \nu }$

Thus, since $\Delta \nu =0$ , $Kp=Kc$ , so no effect in concentration is due to the pressure.

Best regards.

6 0

3 years ago

Hi Please help me, thank you

seropon [69]

Answer:

C I might be wrong tho

Explanation:

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3 years ago

A motor vehicle has a mass of 1200 kg, and is traveling at a velocity of 70 km/hours to the Southeast. As it travels over a hill

tatuchka [14]

Answer: 35280 J of Gravitational energy

Solution:

Given:

Mass of the vehicle,(m)=1200kg

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Maximum height reached,(h)= 3 m

Gravitational energy or gravitational potential energy can be calculated as;

$\text{gravitational energy}=mgh$

$\text{gravitational energy}=(1200 Kg)(9.8 m/s^2)(3 m)=35280 J$

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the correct option is:

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liberstina [14]

Answer:

the empirical formula will have less molar mass, or sometimes equal molar mass, when compared to the molecular formula

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2 years ago