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Kisachek [45]
2 years ago
11

Xianming runs a titration and collects, dries, and weighs the BaSO4(s) produced in the experiment. He reports a mass of 0.2989 g

go BaSO4. Based on this, calculate the concentration of Ba(OH)2 solution.
Chemistry
1 answer:
Leto [7]2 years ago
6 0

The question is incomplete, here is the complete question:

Ba(OH)_2(aq.)+H_2SO_4(aq.)\rightarrow BaSO_4(s)+2H_2O(l)

Xianming runs a titration and collects, dries, and weighs the BaSO_4(s) produced in the experiment. He reports a mass of 0.2989 g go BaSO_4 Based on this, calculate the concentration of Ba(OH)_2 solution.

<u>Answer:</u> The concentration of barium hydroxide solution is 0.0013 moles.

<u>Explanation:</u>

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

\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}  

Given mass of barium sulfate = 0.2989 g

Molar mass of barium sulfate = 47.87 g/mol

Putting values in above equation, we get:

\text{Moles of barium sulfate}=\frac{0.2989g}{233.4g/mol}=0.0013mol

The given chemical reaction follows:

Ba(OH)_2(aq.)+H_2SO_4(aq.)\rightarrow BaSO_4(s)+2H_2O(l)

By Stoichiometry of the reaction:

1 mole of barium sulfate is produced from 1 mole of barium hydroxide

So, 0.0013 moles of barium sulfate will be produced from = \frac{1}{1}\times 0.0013=0.0013mol of barium hydroxide

As, no volume of the container is given. So, the concentration will be calculated in moles only.

Hence, the concentration of barium hydroxide solution is 0.0013 moles.

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