3 years ago

What is the ph of a solution of 0.700 m kh2po4, potassium dihydrogen phosphate?

1 answer:

4 0

Molal or molar? There is a difference

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Jobisdone [24]

Answer:

Explanation:

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vladimir1956 [14]

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Alla [95]

Answer:

Explanation:

Fe(NO₃)₃ and K₂CO₃ are strong electrolytes and completely dissociate in water. Carbonate ions is a weak base and combine with water to form hydroxide ions (OH⁻), CO₃²⁻ + H₂O <----------------> HCO₃⁻ + OH⁻
Ferric, Fe (III), combines with these hydroxide ions to form insoluble precipitates. Fe(OH)₃ is only partially soluble i.e., it does not completely dissociate in water. When the solutions of Fe(NO₃)₃ and K₂CO₃ are mixed, Fe(OH)₃ precipitates out due to the strong electrostatic attraction between Fe (III) and hydroxide ions.

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S_A_V [24]

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igor_vitrenko [27]

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