What is the percent composition of chlorine in hydrochloric acid

% H = (atomic mass H/molar mass HCl)*100 =?

% Cl = (atomic mass Cl/molar mass HCl)*100 = ?

To find the percent composition of chlorine in hydrochloric acid (HCl), you need to calculate the mass and molar masses of chlorine and hydrochloric acid.

The molar mass of chlorine (Cl) is approximately 35.45 g/mol, and the molar mass of hydrochloric acid (HCl) is approximately 36.46 g/mol (1 g/mol for hydrogen + 35.45 g/mol for chlorine).

Since hydrochloric acid contains one chlorine atom, the percent composition of chlorine in hydrochloric acid can be calculated as follows:

(Mass of chlorine / Mass of hydrochloric acid) * 100

Substituting the molar masses, the calculation becomes:

(35.45 g/mol / 36.46 g/mol) * 100 ≈ 97.22%

Therefore, the percent composition of chlorine in hydrochloric acid is approximately 97.22%.

To find the percent composition of chlorine in hydrochloric acid (HCl), follow these steps:

1. Determine the molar mass of hydrochloric acid:
- The molar mass of hydrogen (H) is approximately 1.01 grams per mole.
- The molar mass of chlorine (Cl) is approximately 35.45 grams per mole.
- Since hydrochloric acid contains one hydrogen atom and one chlorine atom, the molar mass of HCl is:
Molar mass of HCl = 1.01 g/mol (hydrogen) + 35.45 g/mol (chlorine) = 36.46 g/mol.

2. Calculate the mass of chlorine in hydrochloric acid:
- Since the molar mass of HCl is 36.46 g/mol, this means that 1 mole of HCl contains 1 mole of chlorine.
- Therefore, the mass of chlorine in 1 mole of HCl is 35.45 grams.

3. Determine the percent composition of chlorine in hydrochloric acid:
- The percent composition is calculated by dividing the mass of chlorine by the molar mass of HCl and multiplying by 100%.
- Therefore, the percent composition of chlorine in hydrochloric acid is:
Percent composition of chlorine = (mass of chlorine / molar mass of HCl) × 100
Percent composition of chlorine = (35.45 g / 36.46 g/mol) × 100 ≈ 97.3%

So, the percent composition of chlorine in hydrochloric acid is approximately 97.3%.