According to the following reaction, how many grams of oxygen gas are required for the complete reaction of 30.3 grams of hydrochloric acid? hydrochloric acid (aq) + oxygen (g) water (l) + chlorine (g) grams oxygen gas

The mass of oxygen gas required will be 6.648 grams.

Explanation:

To calculate the number of moles, we use the equation:

    ....(1)

Given mass of hydrochloric acid = 30.3 g

Molar mass of hydrochloric acid = 36.46 g/mol

Putting values in above equation, we get:

For the given chemical reaction, the balanced equation follows:

By Stoichiometry of the reaction:

4 moles of HCl reacts with 1 mole of oxygen gas.

So, 0.831 moles of HCl will react with = of oxygen gas.

Now, calculating the mass of oxygen gas by using equation 1, we get:

Moles of oxygen gas = 0.20775 moles

Molar mass of oxygen gas = 32 g/mol

Putting values in equation 1, we get:

Hence, the mass of oxygen gas required will be 6.648 grams.

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