What volume of oxygen at STP is required for the complete combustion of 100.50 mL of C2H2?

Answers

Answer 1

Answer:

The given substance combusts following the reaction:

C2H2 + (5/2)O2 -> 2CO2 + H2O

Assume C2H2 is an ideal gas. At STP, 1 mol of an ideal gas occupies 22.4 L. Given 100.50 mL of C2H2, this means that there is 4.4866 x 10^(-3) mol. Combusting 1 mol of C2H2 consumes (5/2) mol of O2, then combusting the given amount of C2H2 consumes 0.01121 mol of O2. At STP, this amount of O2 occupies 251.25 mL.

Answer 2

Answer:

Answer: 251.25 ml

Explanation: $2C_2H_2(g)+5O_2(g)\rightarrow 4CO_2+2H_2O$

According to Avogadro's law, 1 mole of every gas occupies 22.4 L at Standard temperature and pressure (STP).

2 moles of $C_2H_2(g)$ occupy = $2* 22.4L=44.8L=44,800ml$

5 moles of $O_2(g)$ occupy = $5* 22.4L=112L=112000ml$

Thus 44800 ml of $C_2H_2(g)$ reacts with 112000 ml of $O_2(g)$ at STP

100.50 ml of $C_2H_2(g)$ reacts with = $(112000)/(44800)* 100.50=251.25 ml$ of $O_2(g)$ at STP.

Related Questions

PLEASE HELP ILL GIVE BRAINLIEST What do you think energy has to do with the heating systems
5. Given the following equation: 8 Fe S8 8 Fes, what mass of iron is needed to react with16.0 grams of sulfur? How many grams of FeS are produced?
The pigment which determines skin color is .
Write the atomic symbols for isotopes with the following characteristics? 1)an oxygen atom with 10 neutrons 2)a neon atom with twelve neutrons 3)25 electrons and 28 neutrons 4)a mass number of 24 and 13 neutrons 5)a titanium atom with 25 neutrons
What is the average time it took for the tablet todissolve in cold water?

Which process melts an ore to separate useful metals from the rest of the elements in the ore? smelting, mining, prospecting, alloys

Answers

The process melts an ore to separate useful metals from the rest of the elements in the ore is called smelting. The ore is heated beyond its melting point to extract the metal with the help of oxidizing agents such as air or reducing agents such as coke.

Newton’s first law of motion was a giant leap forward in scientific thought during Newton’s time. Even today, the idea is sometimes difficult at first for people to understand.

Answers

The correct answer for the question that is being presented above is this one: "A rolling ball eventually slows down and comes to a stop." Newton’s first law of motion was a giant leap forward in scientific thought during Newton’s time. Even today, the idea is sometimes difficult at first for people to understand.

What does w represent

Answers

W is a variable that can be used to represent whole numbers or the first letter of an object in the problem. Example: If a house has 4 windows on each side and there’s 4 sides of the house, find W, or the amount of windows there are total. An example for how it could also be used as a whole number is: Find W in this problem, or the whole number. Hope this helps! :)

Answer:

It is used to represent whole numbers

Explanation:

How many moles of oxygen are produced when 8 moles of Al are produced?

Answers

Answer:

i think its 6 bru

Explanation:

Answer:

its 6

Explanation:

got it right on engenuity

Magma from Earth's interior oozes from the cracks at mid-ocean ridges.
a. True
b. False

Answers

The answer is A. True

Magma from Earth's interior oozes from the cracks at mid-ocean ridges.

true is the right one

As this reaction takes place at higher temperatures, it is observed that the equilibrium shifts toward the products. The reaction is

Answers

As this reaction takes place at higher temperatures, it is observed that the equilibrium shifts toward the products. The reaction is an endothermic reaction since it requires energy for the reaction to proceed which describes an endothermic reaction.

The answer is: endothermic reaction.

This reaction is endothermic (enthalpy is higher than zero), which means that heat is added.

According to Le Chatelier's principle when the reaction is endothermic heat is included as a reactant and when the temperature increased, the heat of the system increase, so the system consume some of that heat by shifting the equilibrium to the right, producing more products.

Other Questions

When 0.2mol of calcium reacts with 880g of water 2.24L of hydrogen gas form at STP How would the amount of hydrogen produced change if the volume of water was decreased to 440mL 400g?

What can be added to an atom to cause a nonvalence electron in the atom to temporarily become a valence electron?energymassneutronselectrons

Describe the general location of the electrons in a covalent bond

16 Which two gases can not be broken down by chemical means?(1) CO and He (3) Xe and He(2) CO and NH3 (4) Xe and NH3