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Alex73 [517]
2 years ago
5

Why concentrated acid is hazardous material​

Chemistry
2 answers:
Vlad1618 [11]2 years ago
7 0

Answer:

The more concentrated acid something is the more strength it has.

Explanation:

If it is very strong it could melt a spoon, and burn human flesh, I don't think this needs further explanation.

Setler [38]2 years ago
5 0

Answer:

Here's it.

Explanation:

Concentrated acids are very corrosive and dangerous chemicals that are commonly encountered in the laboratory. ... Concentrated acids may be fatal if inhaled; and can cause severe eye and skin burns, severe respiratory and digestive tract burns. Contact with other materials may cause a fire.

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11.31g NaClO₂

Explanation:

<em> Is given 250mL of a 1.60M chlorous acid HClO2 solution. Ka is 1.110x10⁻². What mass of NaClO₂ should the student dissolve in the HClO2 solution to turn it into a buffer with pH =1.45? </em>

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<em>Where pKa is -log Ka = 1.9547; [A⁻] is the concentration of the conjugate base (NaClO₂), [HA] the concentration of the weak acid</em>

You can change the concentration of the substance if you write the moles of the substances:

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Replacing in H-H expression, as the pH you want is 1.45:

1.45 = 1.9547 + log₁₀ [Moles NaClO₂] / [0.40 moles HClO₂]

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<em>0.3128 = </em>[Moles NaClO₂] / [0.40 moles HClO₂]

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0.1251 moles NaClO₂ ₓ (90.44g / mol) =

<h3>11.31g NaClO₂</h3>
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