The saturated solutions of Ca(OH) contain a white solid which
was removed by filtering. What is...
The saturated solutions of Ca(OH) contain a white solid which
was removed by filtering. What is this solid? If it were not
removed, how would it affect the calculated (observed) values for
sp 2 K and solubility of Ca(OH) ?
The equation below
represents the equilibrium process of a saturated solution of
Ca(OH)2
If the following
changes are made to a saturated solution, what will be the effect
on the [Ca2+] ?
Ca(OH)2 (s) <-->
Ca2+(aq) + 2
OH-(aq) ΔH =
-16.6 kJ
The solution is raised
to a higher temperature
Answer 1Choose...IncreaseDecreaseNo Change
A strong base is added
to the solution
Answer 2Choose...IncreaseDecreaseNo Change
Ca(NO3)2 (s) is added. (
Ca(NO3)2 is very soluble)
Answer 3Choose...IncreaseDecreaseNo Change
A strong...
Phosphate can be removed from drinking-water supplies by
treating water with Ca(OH)2: Ca(OH)2(aq) + PO43-(aq) Ca5OH(PO4)3(s)
+ OH-(aq) How much Ca(OH)2 is required to remove 90% of the PO43-
from 4.5 x 106 L of drinking water containing 25 mg/L of PO43-?
A sample of solid Ca(OH)2 was stirred in water at a certain
temperature until the solution contained as much dissolved Ca(OH)2
as it could hold. A 78.7-mL sample of this solution was withdrawn
and titrated with 0.0696 M HBr. It required 68.0 mL of the acid
solution for neutralization.
(a) What was the molarity of the Ca(OH)2 solution?
_________M
(b) What is the solubility of Ca(OH)2 in water, at
the experimental temperature, in grams of Ca(OH)2 per
100 mL of...
A sample of solid Ca(OH)2 was stirred in water at a
certain temperature until the solution contained as much dissolved
Ca(OH)2 as it could hold. A 59.6-mL sample of this
solution was withdrawn and titrated with 0.0543 M HBr. It
required 67.1mL of the acid solution for neutralization.
(b) What is the solubility of Ca(OH)2 in water, at
the experimental temperature, in grams of Ca(OH)2 per
100 mL of solution? g/100mL
A sample of solid Ca(OH)2 was stirred in water at a certain
temperature until the solution contained as much dissolved Ca(OH)2
as it could hold. A 77.3-mL sample of this solution was withdrawn
and titrated with 0.0573 M HBr. It required 80.4 mL of the acid
solution for neutralization.
(a) What was the molarity of the Ca(OH)2 solution?
(b) What is the solubility of Ca(OH)2 in water, at the
experimental temperature, in grams of Ca(OH)2 per 100 mL of
solution?
a) A student A weighed .50 Ca(OH)2 for his saturated solution
and student B weighed 0.23 g, Both students dissolved it in 60 ml
of water and both had solid left in their solution before
filtrating. After filtrating to a clear solution, which student had
the most concentrated solution? What would the effect on the volume
of HCl titrant used and the calculated Ksp of the reaction if one
of the students had a couldy solution after filtering and proceeded...
Aqueous solutions of sodium sulfate and lead(II) nitrate are
mixed and a white solid forms. What is the formula of the solid?
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