Answer :

To determine the molar mass of the compound [tex]\( \text{KClO}_2 \)[/tex], you need to consider the atomic masses of each element in the compound. The given atomic masses are:

- Potassium (K) = 39
- Chlorine (Cl) = 35.5
- Oxygen (O) is generally known to have an atomic mass of 16

The formula for potassium chlorite is [tex]\( \text{KClO}_2 \)[/tex], which includes:

- 1 atom of potassium (K)
- 1 atom of chlorine (Cl)
- 2 atoms of oxygen (O)

Now, let's calculate the molar mass step-by-step:

1. The mass contributed by potassium (K) is [tex]\( 1 \times 39 = 39 \)[/tex].

2. The mass contributed by chlorine (Cl) is [tex]\( 1 \times 35.5 = 35.5 \)[/tex].

3. The mass contributed by the two oxygen atoms is [tex]\( 2 \times 16 = 32 \)[/tex].

Finally, add these values together to find the total molar mass of [tex]\( \text{KClO}_2 \)[/tex]:

[tex]\[ 39 + 35.5 + 32 = 106.5 \][/tex]

So, the molar mass of [tex]\( \text{KClO}_2 \)[/tex] is 106.5.

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