Concept explainers
Interpretation:
An unknown solution contains either calcium ions or strontium ions. The solution has
Concept introduction:
Soluble compounds in water:
All group
Almost all the salts of
Most of the sulfates are soluble except
All the chlorate
Salts of F- are soluble. But some of the fluoride salt of
Salts of
Insoluble compounds in water:
All phosphates
All chromates
All hydroxides are insoluble except
All oxalates
All sulfides
Most of the metal hydroxides and oxides are insoluble in water bit some of the alkali metal hydroxides,
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Chemistry: The Molecular Science
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- Complete the right side of each of the following molecular equations. Then write the net ionic equations. Assume all salts formed are soluble. Acid salts are possible. a Ca(OH)2(aq) + 2H2SO4(aq) b 2H3PO4(aq) + Ca(OH)2(aq) c NaOH(aq) + H2SO4(aq) d Sr(OH)2(aq) + 2H2CO3(aq)arrow_forwardYou are given four different aqueous solutions and told that they each contain NaOH, Na2CO3, NaHCO3, or a mixture of these solutes. You do some experiments and gather these data about the samples. Sample A: Phenolphthalein is colorless in the solution. Sample B: The sample was titrated with HCl until the pink color of phenolphthalein disappeared, then methyl orange was added. The solution became pink. Methyl orange changes color from pH 3.01 (red) to pH 4.4 (orange). Sample C: Equal volumes of the sample were titrated with standardized acid. Using phenolphthalein as an indicator required 15.26 mL of standardized acid to change the phenolphthalein color. The other sample required 17.90 mL for a color change using methyl orange as the indicator. Sample D: Two equal volumes of the sample were titrated with standardized HCl. Using phenolphthalein as the indicator, it took 15.00 mL of acid to reach the equivalence point; using methyl orange as the indicator required 30.00 mL HCl to achieve neutralization. Identify the solute in each of the solutions.arrow_forwardA scientist has synthesized a diprotic organic acid, H2A, with a molar mass of 124.0 g/mol. The acid must be neutralized (forming the potassium salt) for an important experiment. Calculate the volume of 0.221 M KOH that is needed to neutralize 24.93 g of the acid, forming K2A.arrow_forward
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