You know that an unlabeled bottle contains an aqueous solution of one of the following: AgNO3, CaCl2, or Al21SO423. A friend suggests that you test a portion of the solution with Ba1NO322 and then with NaCl solutions. According to your friend's logic, which of these chemical reactions could occur, thus helping you identify the solution in the bottle? (a) Barium sulfate could precipitate. (b) Silver chloride could precipitate. (c) Silver sulfate could precipitate. (d) More than one, but not all, of the reactions described in answers a–c could occur. (e) All three reactions described in answers a–c could occur.

Video transcript

Hi everyone here we have a question telling us that an unknown solution is suspected to contain either copper per chlorate, magnesium bromide or sodium sulfate. It was then mixed with strontium per calorie and then potassium bromide solutions which of the following scenarios are likely to occur. So for this we need to remember two of our Celje bility rules. Sulfates are soluble except when with calcium, strontium, barium, silver and lead. And our house slides are soluble except when with silver, lead, copper, Mhm. Or mercury. So now let's look at our options. Strontium sulfate could possibly precipitate. Strontium sulfate is going to be insoluble because it is a sulfate. But it is one of our exceptions. Magnesium sulfate could precipitate. Magnesium sulfate is a sulfate and it's not one of our exceptions. So it is soluble. Copper bromine could possibly precipitate. It is a allied which is generally soluble, but it is one of our exceptions because it is with copper. So it is insoluble. So, our answer here is D two out of the three precipitates above will be produced. Thank you for watching. Bye.