Question

Вычеслите массу и количества вещества оксида углерода 4 образовавшегося при полном сгорании 36 г угля

Answer 1

Дано:
m(C)-36г
Найти:
n(CO2)-?
m(CO2)-?
Решение:
C+O2=CO2
n=m/M=36/12=3моль
n(C):n(CO2)
n(CO2)=3моль
m(CO2)=n(CO2)*M(CO2)=3*44=132г
Ответ:m(CO2)=132г
n(CO2)=3моль

Answer 2

Дано:
m (C) = 36 г
Найти:
m (CO2) -?
n (CO2) -?

Решение :

36г...........х
С + О2 = СО2
12................44

36г----- х
12-------44

х = (36×44)/12= 132 г

n = m/M = 132/44 = 3 моль

Ответ :
m (CO2) = 132 г
n (CO2) = 3 моль

Answer 3

Calculating the Mass and Amount of Substance of Carbon Dioxide (CO2) Formed from the Complete Combustion of 36g of Carbon

To calculate the mass and amount of substance of carbon dioxide (CO2) formed from the complete combustion of 36g of carbon, we can use the stoichiometry of the chemical reaction.

The balanced chemical equation for the complete combustion of carbon can be represented as: C + O2 → CO2

From the balanced equation, we can see that 1 mole of carbon reacts with 1 mole of oxygen to produce 1 mole of carbon dioxide.

Calculating the Amount of Substance of Carbon Dioxide (CO2)

To calculate the amount of substance of carbon dioxide (CO2) formed, we can use the molar mass of carbon and carbon dioxide.

The molar mass of carbon (C) is approximately 12 g/mol, and the molar mass of carbon dioxide (CO2) is approximately 44 g/mol.

Using the given mass of carbon (36g), we can calculate the amount of substance of carbon dioxide formed using the following steps:

1. Calculate the moles of carbon using the given mass: moles of C = mass / molar mass moles of C = 36g / 12 g/mol moles of C = 3 moles

2. Since the stoichiometry of the reaction is 1:1 for carbon and carbon dioxide, the moles of carbon dioxide formed will be the same as the moles of carbon: moles of CO2 = moles of C moles of CO2 = 3 moles

Therefore, the amount of substance of carbon dioxide formed from the complete combustion of 36g of carbon is 3 moles.

Calculating the Mass of Carbon Dioxide (CO2)

To calculate the mass of carbon dioxide (CO2) formed, we can use the amount of substance calculated above and the molar mass of carbon dioxide.

The molar mass of carbon dioxide (CO2) is approximately 44 g/mol.

Using the amount of substance of carbon dioxide (3 moles), we can calculate the mass of carbon dioxide formed using the following steps:

mass of CO2 = moles of CO2 × molar mass of CO2 mass of CO2 = 3 moles × 44 g/mol mass of CO2 = 132g

Therefore, the mass of carbon dioxide formed from the complete combustion of 36g of carbon is 132g.

Conclusion

The amount of substance of carbon dioxide formed is 3 moles, and the mass of carbon dioxide formed is 132g.