Chemistry, 07.01.2021 14:00 evanmc627

In a reaction, 2mol of oxygen reacts with 8g of ethane to produce carbon dioxide and water, calculate the mass of carbon dioxide formed in this reaction. 2C2H6 +7O2 > 4CO2 +6H2O

Answers: 2

Show answers

Answers

Answer from: kasey1292

The mass of carbon dioxide formed in the reaction is 23.47 grams.

Explanation:

The balanced reaction is:

2 C₂H₆ +7 O₂ ⇒ 4 CO₂ + 6 H₂O

By stoichiometry of the reaction (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of each compound participate in the reaction:

C₂H₆: 2 moles O₂: 7 moles CO₂: 4 molesH₂O: 6 moles

Being the molar mass of the compounds:

C₂H₆: 30 g/moleO₂: 16 g/mole CO₂: 44 g/moleH₂O: 18 g/mole

By reaction stoichiometry, the following mass amounts of each compound participate in the reaction:

C₂H₆: 2 moles* 30 g/mole= 60 gO₂: 7 moles* 16 g/mole= 112 gCO₂: 4 moles* 44 g/mole= 176 gH₂O: 6 moles* 18 g/mole= 108 g

The limiting reagent is one that is consumed first in its entirety, determining the amount of product in the reaction. When the limiting reagent is finished, the chemical reaction will stop.

To determine the limiting reagent, you can use a simple rule of three as follows: if by stoichiometry of the reaction 7 moles of O₂ react with 60 g of C₂H₆, 2 moles of O₂ will react with how much mass of C₂H₆?

$mass of C_{2}H_{6} =\frac{2 moles of O_{2}* 60 grams of C_{2}H_{6} }{7 moles of O_{2}}$

mass of C₂H₆= 17.14 grams

But 17.14 grams of C₂H₆ are not available, 8 grams are available. Since you have less moles than you need to react with 2 moles of O₂, ethane C₂H₆ will be the limiting reagent.

Then, it is possible to determine the amount of mass of CO₂ produced by another rule of three: if by stoichiometry 60 grams of C₂H₆ produce 176 grams of CO₂, how many mass of CO₂ will be formed if 8 grams of C₂H₆ react?

$mass of CO_{2} =\frac{8 grams of C_{2}H_{6}* 176 grams of CO_{2} }{60 grams of C_{2}H_{6}}$

mass of CO₂= 23.47 grams

The mass of carbon dioxide formed in the reaction is 23.47 grams.

Answer from: Quest

120,630,890

step-by-step explanation:

110+10=120,620+10=630,880+10=890

Answer from: Quest

hurricanes form when warm, moist air from the ocean surface quickly rises into the atmosphere and forms storm clouds and rain. when the clouds are formed, heat is released which warms the cool air in the upper regions of the atmosphere so that the cycle can continue. which two phases of the water cycle are repeated in this process?

Another question on Chemistry

Chemistry, 21.06.2019 23:50

Working with si (metric) units for each of the following commonly used measurements, indicate its symbol. liter gram milliliter kilogram meter centigram milligram centimeter kilometer second millimeter milliseconds

Answers: 1

Answer

Chemistry, 22.06.2019 02:30

What does the cell nucleus do or, how does it function?

Answers: 1

Answer

Chemistry, 22.06.2019 18:30

The table lists the lattice energies of some compounds.compoundlattice energy (kj/mol)lif –1,036licl –853naf –923kf –821nacl –786which statement about crystal lattice energy is best supported by the information in the table? the lattice energy increases as cations get smaller, as shown by lif and kf.the lattice energy increases as the cations get larger, as shown by lif and licl.the lattice energy decreases as cations get smaller, as shown by nacl and naf.the lattice energy decreases as the cations get smaller, as shown by naf and kf.

Answers: 3

Answer

Chemistry, 22.06.2019 22:30

Which is a characteristic of the electron sea model for metallic bonding? molecular orbitals overlap to produce bands. electrons flow easily between metal nuclei. electrons are in fixed positions in the orbitals. atomic nuclei are arranged in an irregular pattern.

Answers: 3

Answer

You know the right answer?

In a reaction, 2mol of oxygen reacts with 8g of ethane to produce carbon dioxide and water, calculat...

Questions