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amm1812
3 years ago
11

Consider n2 (g) + 3h2 (g) →→ 2nh3 (g). what is the mass of nitrogen gas required to react with 0.129 g h2?

Chemistry
1 answer:
Flura [38]3 years ago
6 0
The given chemical reaction given above is already balanced such that the number of atoms in the left hand side of the equation is equal to that of the right hand side. Using the dimensional analysis, proper conversion factors and the molar masses,

                    mass of nitrogen = (0.129 g H₂)(1 mol H₂/2 g H₂)(1 mol N₂/3 mol H₂)(28 g N₂/1 mol N₂)
                     mass of nitrogen = 0.602 g N₂

Therefore, 0.602 g of nitrogen will be required for he reaction. 
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1. El metodo cientifico pretende sistematizar el proceso de obtención del conocimiento cientifico, evitar la subjetividad en los
____ [38]

Answer:

La afirmación es verdadera.

Explanation:

El método científico es un método de  investigación usado principalmente en la producción de conocimiento en las ciencias y se define como un procedimiento para tratar un conjunto de problemas. En ciencia, el método científico es la estrategia para la investigación y la exploración de lo desconocido.

Por lo que el método científico es el procedimiento mediante el cual es posible alcanzar un  conocimiento objetivo de la realidad, tratando de dar respuesta a las interrogantes  acerca del orden de la naturaleza.

Para ser científico, un método de investigación debe basarse en la empírica y en la  medición, sujeto a los principios específicos de las pruebas de razonamiento.

El método científico se basa en la reproducibilidad, es decir, la  capacidad de repetir un determinado experimento, en cualquier lugar y por cualquier  persona, y la refutabilidad,  es  decir toda proposición científica tiene que ser susceptible de  ser falsada o refutada.

Entonces <u><em>la afirmación es verdadera.</em></u>

6 0
3 years ago
Any reaction that absorbs 150 kcal of energy can be classified as
Dennis_Churaev [7]
The answer should be (D) endothermic reaction.

Reason : -  Reactions in which energy is absorbed are called endothermic reactions. In your provided question, 150 kcal energy is being <u>absorbed</u>, and thus, we can say that it is an endothermic reaction. 
6 0
3 years ago
A 200.0 ml beaker filled with oil has a mass of 293.2 g. The mass of just the beaker is 130.2
Lelu [443]

Answer:p=m/v

p=(292.2-130.2)/200

p=0.8100g/ml

Explanation:

5 0
3 years ago
NaOH(aq) + MgSO4(aq) →
Cerrena [4.2K]

Answer:

if balanced reaction then 2 NaOH + MgSO4 → Mg(OH)2 + Na2SO4

Explanation:

3 0
3 years ago
Red light has a wavelength of about 6.5 x 10-7m. Find its frequency. Show all work.
ozzi
For this problem we use the wave equation. It is expressed as the speed (c) is equal to the product of frequency (f) and wavelength (v).

c = v x f

We know the wavelength of the an red light which is 6.5 x 10^-7 m. Now, we solve for the wavelength of the unknown wave to see the relation between the two waves.

2.998 X 10^8 = 5.3 X 10^15 X v
v = 2.998 X 10^8 / (5.3 X 10^15) = 5.657 X 10^-8 m

Therefore, the wavelength of the unknown wave is less than the wavelength of the red light.
3 0
3 years ago
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