Question

Какие объемы (н.у.) хлора и водорода потребуются для получения соляной кислоты массой с w(Hcl)=18,25%

Answer 1

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Answer 2

Calculating the Volume of Chlorine and Hydrogen for the Production of Hydrochloric Acid

To calculate the volumes of chlorine (Cl2) and hydrogen (H2) required to produce a given mass of hydrochloric acid (HCl), we can use the balanced chemical equation for the formation of hydrochloric acid from its elements:

2 H2 + Cl2 → 2 HCl

Given that the molar mass of HCl is approximately 36.46 g/mol, and the mass of HCl required is 18.25%, we can proceed with the calculations.

Calculating the Volume of Chlorine (Cl2)

The molar ratio of Cl2 to HCl in the balanced chemical equation is 1:2. Therefore, the molar mass of Cl2 is 2 * 35.45 g/mol = 70.90 g/mol.

Using the given mass of HCl (18.25% of the total mass) and the molar mass of HCl, we can calculate the moles of HCl produced. Then, using the molar ratio, we can find the moles of Cl2 required.

Calculating the Volume of Hydrogen (H2)

Similarly, the molar ratio of H2 to HCl in the balanced chemical equation is 2:2, simplifying to 1:1. Therefore, the molar mass of H2 is 2.02 g/mol.

Using the same approach as for chlorine, we can calculate the moles of H2 required to produce the given mass of HCl.

Conclusion

By following these calculations, we can determine the volumes of chlorine and hydrogen required to produce the specified mass of hydrochloric acid.

Let's proceed with the calculations.