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Calculate the number of moles of the acid HCl, given:

[tex]\[ \text{H} = 1.00, \quad \text{Na} = 23.0, \quad \text{O} = 16.0, \quad \text{Cl} = 35.5 \][/tex]

Use Avogadro's constant: [tex]\( 6.022 \times 10^{23} \)[/tex].



Answer :

GinnyAnswer
Sure! Let's analyze the given problem and solve it step by step to find the molecular mass of HCl.

1. Identify the elements present in HCl:
- Hydrogen (H)
- Chlorine (Cl)

2. Given values:
- Atomic mass of Hydrogen (H) = 1.00
- Atomic mass of Chlorine (Cl) = 3.5
- Avogadro's constant = [tex]\(6.002 \times 10^{23}\)[/tex] (Though this is not required for molecular mass calculation)

3. Calculate the molecular mass of HCl:
- The molecular mass of HCl is the sum of the atomic masses of Hydrogen and Chlorine.

- Molecular mass of HCl = Atomic mass of H + Atomic mass of Cl
- Molecular mass of HCl = 1.00 + 3.5

4. Final step:
- Adding these values gives us the molecular mass of HCl:
- Molecular mass of HCl = 4.5

So, the molecular mass of HCl is 4.5.

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