3) three colorless solution in test tubesm whit no labels arein a test rack on t

Question

3) three colorless solution in test tubesm whit no labels arein a test rack on the laboratory bench. lying beside the test tubesare three labels, potassium iodide, KI, silver nitrate, AgNO3 andsolution sulfide Na2S you are to place the labels on the test tubesusing only the three solution present . Here are you tests; a) A portion of test tube 1 added to a portion of test tube 3produces a yellow, silver iodide precipitate b) A portion of test tube 1 adde to a portion of test tube 2produces a black, silver sulfide precipitate c) Your Conclusins are 4) three colorless solution in test tubesm whit no labels arein a test rack on the laboratory bench. lying beside the test tubesare three labels, silver nitrate AgNO3, hydrochloric acid HCL, andsodium Carbonate Na2CO3 You are t o place the labels on test tubesusing only the three solution present. here is your analysisprocedure: a)Aportion of test tube 1 added to  portion of test tube2 produces carbon dioxide gas. b) A portion of test tube 2 added to a portion of test tube 3produces white, silver  carbonate presipitate. c) On the basis of your observation how would you label thethree test tubes? 3) three colorless solution in test tubesm whit no labels arein a test rack on the laboratory bench. lying beside the test tubesare three labels, potassium iodide, KI, silver nitrate, AgNO3 andsolution sulfide Na2S you are to place the labels on the test tubesusing only the three solution present . Here are you tests; a) A portion of test tube 1 added to a portion of test tube 3produces a yellow, silver iodide precipitate b) A portion of test tube 1 adde to a portion of test tube 2produces a black, silver sulfide precipitate c) Your Conclusins are 4) three colorless solution in test tubesm whit no labels arein a test rack on the laboratory bench. lying beside the test tubesare three labels, silver nitrate AgNO3, hydrochloric acid HCL, andsodium Carbonate Na2CO3 You are t o place the labels on test tubesusing only the three solution present. here is your analysisprocedure: a)Aportion of test tube 1 added to  portion of test tube2 produces carbon dioxide gas. b) A portion of test tube 2 added to a portion of test tube 3produces white, silver  carbonate presipitate. c) On the basis of your observation how would you label thethree test tubes?

Explanation / Answer

a. In the first reaction, CO2 is liberated. The only two which give this reaction are
2HCl + Na2CO3 ---> 2NaCl + CO2(gas)
so TT1 one of these and TT2 is the other, leaving TT3 as AgNO3.
The second reaction, if you are CERTAIN that the ppt is the carbonate and not the chloride, is
2AgNO3 + Na2CO3 ---> Ag2CO3(ppt) + 2NaNO3
so TT2 is Na2CO3.
TT1 is HCl; TT2 is Na2CO3; TT3 is AgNO3

b. A white ppt of AgCl is formed
HCl + AgNO3 ---> HNO3 + AgCl(ppt)

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