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Molar massHydrogen chloride (hydrochloric acid)
Molar mass of HCl (Hydrogen chloride (hydrochloric acid))
The molar mass of HCl is 36.46 g/mol.
A strong acid used in titrations; your stomach makes it to digest food.
Step-by-step calculation
Add up the atomic masses of every atom in the formula:
1 × 1.008 + 1 × 35.453 = 36.46 g/mol
| Element | Atoms | Atomic mass (u) | Subtotal (g/mol) | % by mass |
|---|---|---|---|---|
| Hydrogen (H) | 1 | 1.008 | 1.008 | 2.76% |
| Chlorine (Cl) | 1 | 35.453 | 35.453 | 97.24% |
| Molar mass of HCl | 36.46 g/mol | |||
Moles to grams for HCl
Multiply the number of moles by 36.46 g/mol to get the mass, and divide a mass by 36.46 g/mol to get the moles.
| Amount (mol) | Mass (g) | Mass (g) | Amount (mol) |
|---|---|---|---|
| 0.1 mol | 3.65 g | 1 g | 0.0274 mol |
| 0.25 mol | 9.12 g | 5 g | 0.1371 mol |
| 0.5 mol | 18.23 g | 10 g | 0.2743 mol |
| 1 mol | 36.46 g | 50 g | 1.3713 mol |
| 2 mol | 72.92 g | 100 g | 2.7427 mol |
| 5 mol | 182.31 g | 500 g | 13.7133 mol |
Experiments that use hydrogen chloride (hydrochloric acid)
⚖️ Calculate any other formulaFrequently asked questions
What is the molar mass of HCl?
The molar mass of HCl (hydrogen chloride (hydrochloric acid)) is 36.46 g/mol, so one mole of hydrogen chloride (hydrochloric acid) weighs 36.46 grams.
How do you calculate the molar mass of HCl?
Multiply each element’s atomic mass by the number of atoms in the formula and add the results: 1 × 1.008 + 1 × 35.453 = 36.46 g/mol.
What percentage of HCl is chlorine?
Chlorine makes up 97.24% of the mass of HCl.
How many grams are in one mole of HCl?
One mole of HCl has a mass of 36.46 grams, and contains 6.022 × 10²³ formula units.