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3 years ago

2. (a) Solid calcium oxide was taken in a container and water was added slowly to it:

Chemistry

1 answer:

lukranit [14]3 years ago

3 0

Explanation:

(i) Two observations made in the experiment are:-

(a) Temperature is raised due to the vigorous reaction.

(b) It is an exothermic reaction, heat is observed.

(ii)

quicklime

CaO

(s)+

water

(l)⟶

CalciumHydroxide

Ca(OH)

+Δ(heat)

∴ Calcium Hydroxide is produced.

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2 years ago

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valentina_108 [34]

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4 years ago

At 25 °C, only 0.0990 mol of the generic salt AB3 is soluble in 1.00 L of water. What is the Ksp of the salt at 25 °C? AB3(s)↽−−

maksim [4K]

Answer:

$Ksp=2.59x10^{-3}$

Explanation:

Hello,

In this case, given the 0.0990 moles of the salt are soluble in 1.00 L of water only, we can infer that the molar solubility is 0.099 M. Next, since the dissociation of the salt is:

$AB_3\rightleftharpoons A^{3+}+3B^-$