Question

Массовая доля химичиских элементов в составе HCL

Answer 1

Ответ:

h=2.74

cl=97.26%

Объяснение:

Mr(hcl)=36.5

36.5------100%

1(h)--------×=

35.5(cl)----×=

h)=100×1/36.5=2.74%

cl)=100×35.5/36.5=97.26%

Answer 2

Mass Fraction of Chemical Elements in HCl

The mass fraction of chemical elements in the compound HCl (hydrochloric acid) can be determined by looking at the molar mass of each element and then calculating the mass fraction based on their contribution to the overall molar mass of HCl.

Hydrochloric acid (HCl) is composed of hydrogen (H) and chlorine (Cl) elements. The molar mass of hydrogen is approximately 1.0079 g/mol, and the molar mass of chlorine is approximately 35.453 g/mol.

To calculate the mass fraction of each element in HCl, we can use the following formula:

Mass Fraction = (Molar Mass of Element / Molar Mass of Compound) * 100%

Using this formula, we can calculate the mass fraction of hydrogen and chlorine in HCl.

The mass fraction of hydrogen in HCl: Mass Fraction of Hydrogen = (1.0079 / (1.0079 + 35.453)) * 100%

The mass fraction of chlorine in HCl: Mass Fraction of Chlorine = (35.453 / (1.0079 + 35.453)) * 100%

By performing the calculations, we can determine the mass fraction of each element in HCl.

The search results do not provide the exact mass fractions of hydrogen and chlorine in HCl. However, based on the molar masses of hydrogen and chlorine, the mass fraction of hydrogen is approximately 2.76% and the mass fraction of chlorine is approximately 97.24% in hydrochloric acid (HCl).

Therefore, the mass fraction of hydrogen in HCl is approximately 2.76%, and the mass fraction of chlorine in HCl is approximately 97.24%.