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mamaluj [8]
2 years ago
13

What happens to sodium sulphate in water​

Chemistry
1 answer:
kirza4 [7]2 years ago
6 0

Answer:

It dissolves into the water

Na₂SO₄ + H₂O → 2Na₊_{aq} + SO₄²-_{aq}

Hope this helps :)

Have a great day !

5INGH

Explanation:

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How much 10.0 M HNO must be added to 1.00 L of a buffer that is 0.0100 M acetic acid and 0.100 M sodium acetate to reduce the pH
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Explanation:

It is given that molarity of acetic acid = 0.0100 M

Therefore, moles of acetic acid = molarity of acetic acid × volume of buffer

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New moles of sodium acetate = (initial moles acetate) - (moles HNO_{3})

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According to Henderson - Hasselbalch equation,

           pH = pK_{a} + log\frac{[conjugate base]}{[weak acid]}

             pH = pKa + log\frac{(new moles of sodium acetate)}{(new moles of acetic acid)}

           4.95 = 4.75 + log\frac{(0.100 mol - x)}{(0.0100 mol + x)}

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volume of HNO_{3} = \frac{moles HNO_{3}}{molarity of HNO_{3}}

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or,                             = 3.25           (as 1 L = 1000 mL)

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