Question

Найти массу и объем сероводорода который образуется при взаимодействии 10 грамм серы с водородом

Answer 1

Уравнение
S+H2_____H2S
найдем моли серы: 10/32=3,2моль
по уравнению моли серы и сероводорода равны,значит можем найти массу сероводорода
m(H2S)=3,2*34=108,8 г
V(H2S)=3,2*22,4=71,68л

Answer 2

Calculating the Mass and Volume of Hydrogen Sulfide

To find the mass and volume of hydrogen sulfide (H2S) formed when 10 grams of sulfur reacts with hydrogen, we can use the balanced chemical equation for the reaction between sulfur and hydrogen to form hydrogen sulfide:

S + H2 → H2S

According to the balanced chemical equation, 1 mole of sulfur reacts with 1 mole of hydrogen to produce 1 mole of hydrogen sulfide.

Calculating the Mass of Hydrogen Sulfide

The molar mass of sulfur (S) is 32.07 g/mol, and the molar mass of hydrogen (H) is 1.008 g/mol. Therefore, the molar mass of hydrogen sulfide (H2S) is 2 * 1.008 g/mol (for hydrogen) + 32.07 g/mol (for sulfur) = 34.086 g/mol.

Using the molar mass of hydrogen sulfide, we can calculate the mass of hydrogen sulfide formed when 10 grams of sulfur reacts with hydrogen:

10 grams of Sulfur * (1 mole Sulfur / 32.07 grams) * (1 mole H2S / 1 mole Sulfur) * (34.086 grams / 1 mole H2S) = X grams of Hydrogen Sulfide

Calculating the Volume of Hydrogen Sulfide

To calculate the volume of hydrogen sulfide formed, we can use the ideal gas law, which states that the volume of a gas is directly proportional to the number of moles of the gas at constant temperature and pressure.

Given that the reaction takes place at standard temperature and pressure (STP), which is 0°C (273.15 K) and 1 atmosphere, we can use the molar volume of a gas at STP, which is approximately 22.4 liters per mole.

Using the molar volume of a gas at STP, we can calculate the volume of hydrogen sulfide formed when 10 grams of sulfur reacts with hydrogen:

X grams of Hydrogen Sulfide * (1 mole H2S / 34.086 grams) * (22.4 liters / 1 mole H2S) = Y liters of Hydrogen Sulfide

Conclusion

By following these calculations, you can determine the mass and volume of hydrogen sulfide formed when 10 grams of sulfur reacts with hydrogen.