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AfilCa [17]
3 years ago
5

Escribe aquí algo que consideres que requiere un balance para que se lleve a cabo correctamente​

Chemistry
1 answer:
Solnce55 [7]3 years ago
8 0

Answer:

Algo importante sobre el balance de una reacción química es la ley de la conservación de la masa que establece que la masa no se crea ni se destruye sólo se transforma de modo que en una reacción química la suma de la masa de los reactivos debe ser igual a la suma de la masa de los productos.

Por ejemplo: La fermentación de la glucosa es una reacción química balanceada que da como resultado etanol y dióxido de carbono.

C₆H₁₂O₆ → 2C₂H₆O +2CO₂

Calculando la masa de los reactivos y productos, se debe cumplir la ley de la conservación de la masa:

C₆H₁₂O₆= 6*12+12*1+6*16=180 g/mol

C₂H₆O= 2*12+6*1+16=46 g/mol

CO₂=12+2*16=44 g/mol

C₆H₁₂O₆ → 2C₂H₆O + 2CO₂

180 g/mol = 2*46 g/mol + 2*44 g/mol

180 g/mol = 92 g/mol + 88 g/mol

180 g/mol = 180 g/mol

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Two liters of oxygen (O2) is collected over water at 20oC. If the total pressure in the container is 95.00 kPa, what is the part
garri49 [273]

Answer:

THE PARTIAL PRESSURE OF OXYGEN GAS IN THE CONTAINER IS 92.67kPa WHICH IS OPTION B.

Explanation:

To calculate the partial pressure of oxygen gas collected over water, we use

Ptotal = Poxygen + P water

It is worthy to note that when oxygen is collected over water, it is mixed with water vapor and the total pressure in the container will be the sum of the pressure exerted by the oxygen gas and that of the water vapor at that given temperature.

At 20 C, the vapor pressure of water as given in the question is 2.33 kPa.

Using the above formula,

Ptotal = Poxygen + P water

Substituting for Poxygen, we have;

Poxygen = Ptotal - P water vapor

P oxygen = 95 .00 kPa - 2.33 kPa

P oxygen = 92.67 kPa.

The partial pressure of oxygen gas in the container is hence, 92.67kPa.

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4 years ago
What pressure will be produced when 2.0 moles of N2 gas is heated to 68oC in a container that holds 1.25 of gas?
Stella [2.4K]

The pressure of the nitrogen gas produced is determined as 44.77 atm.

<h3>What is the pressure of the Nitrogen gas?</h3>

The pressure of the nitrogen gas is determined from ideal gas equation, as shown below;

PV = nRT

P = nRT/V

where;

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  • R is ideal gas constant = 0.08205 L.atm/mol.K
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  • V is volume = 1.25 L

P = (2 x 0.08205 x 341)/(1.25)

P = 44.77 atm.

Learn more about pressure here: brainly.com/question/25736513

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