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Aleks04 [339]
3 years ago
8

Which compound forms a saturated solution at 40 degrees C that contains 46 grams per 100 grams of water?

Chemistry
1 answer:
guapka [62]3 years ago
6 0
The correct answer for the question that is being presented above is this one: "NH4Cl." The compound that forms a saturated solution at 40 degrees C that contains 46 grams per 100 grams of water is the NH4Cl. <span>Ammonium chloride is an inorganic compound with a white crystalline salt that is highly soluble in water.</span>
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ololo11 [35]
Given:
0.060 mol of NiC2O4
Ksp = 4 x 10⁻¹⁰
1.0 L of solution
Kf of Ni(NH3)6 2⁺ = 1.2 x 10⁹
<span>NiC2O4 + 6NH3 ⇋ Ni(NH3)6 2+ + 2O4 2- </span>
<span>NiC2O4 ⇋ Ni 2+ + C2O4 2- ...Ksp </span>
<span>Ni2+ + 6NH3 ⇋ Ni(NH3)6 2+...Kf </span>

Ksp * Kf = (4 x 10⁻¹⁰) * (1.2 x 10⁹) = 0.48

K = 0.48 = [Ni(NH3)6 2+][C2O4 2-] / [NH3]⁶<span> 
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3 0
3 years ago
What would be the resulting molarity of a solution made by dissolving 21.9 grams of KCl in enough water to make an 869-millilite
viktelen [127]
Molar mass KCl = <span>74.5513 g/mol

Number of moles:

21.9 / 74.5513 => 0.293 moles

Volume = 869 mL / 1000 => 0.869 L

Molarity = moles / Volume

Molarity = 0.293 / 0.869

=> 0.337 M</span>
8 0
3 years ago
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