Question

Вычислите массу углерода, который должен прореагировать с фтором объемом 28 л. при нормальных условиях для получения соединения, в котором Карбон проявляет высшую степень окисления.

Answer 1

C + 2F2-->CF4

n(F)=V/Vm=1,25 моль

Состамим уравнение:

1 - 2

х - 1,25 =>

x=(1,25*1)*2 = 0,625 Моль - n(C)

m(C)=n(C)*M(C)=0,625 * 12 = 7,5 грамм

 

Answer 2

Calculation of Carbon Mass Reacting with Fluorine

To calculate the mass of carbon that reacts with fluorine to form a compound where carbon exhibits the highest oxidation state, we need to consider the balanced chemical equation for the reaction between carbon and fluorine.

The balanced chemical equation for the reaction between carbon and fluorine is:

C + 2F2 → CF4

From the balanced equation, we can see that 1 mole of carbon reacts with 2 moles of fluorine to produce 1 mole of carbon tetrafluoride (CF4).

To calculate the mass of carbon, we need to know the molar mass of carbon. The molar mass of carbon is approximately 12.01 g/mol.

Now, let's calculate the mass of carbon that reacts with fluorine.

1. Determine the number of moles of fluorine: - The volume of fluorine gas is given as 28 L. - At normal conditions (standard temperature and pressure), 1 mole of any gas occupies 22.4 L. - Therefore, the number of moles of fluorine is 28 L / 22.4 L/mol = 1.25 moles.

2. Determine the number of moles of carbon: - From the balanced equation, we know that 1 mole of carbon reacts with 2 moles of fluorine. - Therefore, the number of moles of carbon is half the number of moles of fluorine, which is 1.25 moles / 2 = 0.625 moles.

3. Calculate the mass of carbon: - The molar mass of carbon is approximately 12.01 g/mol. - Therefore, the mass of carbon is 0.625 moles * 12.01 g/mol = 7.51 g.

So, the mass of carbon that should react with fluorine to obtain a compound where carbon exhibits the highest oxidation state is approximately 7.51 grams.

Please note that the given search results did not provide specific information related to this calculation. However, the calculation is based on the balanced chemical equation and the molar mass of carbon, which are fundamental concepts in chemistry.