How does the ph value of potassium hydroxide solution compare with that of aqueous ammonia

Chemistry

1 answer:

Nuetrik [128]2 years ago

3 0

Answer:

"Potassium hydroxide is basic while aqueous ammonia is acidic.

KOH has a pH of more than 7, while aqueous NH3 has a pH of less than 7."

Explanation:

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What mass of H2 is needed to react with 8.75 g of O2 according to the following equation: O2(g) + H2(g) → H2O(g)?

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<h3>Further explanation</h3>

The concentration of a substance can be expressed in several quantities such as moles, percent (%) weight / volume,), molarity, molality, parts per million (ppm) or mole fraction. The concentration shows the amount of solute in a unit of the amount of solvent.

Reaction

O₂(g) + 2H₂(g) → 2H₂O(g)

mass of O₂ : 8.75 g

mol O₂(MW=32 g/mol) :

$\tt \dfrac{8.75}{32}=0.273$