Question

1. Which ion is present in each of the following samples? a. The sample gives a white precipitate when treated with AgNO? (silver nitrate). Cl?¹ chloride ion b. The sample gives a light purple color when placed in a hot flame. CS? c. The sample gives off bubbles when treated with acid. CO??² ion CO??² + 2h? ? CO? + H?O ? gives off bubbles 2. Which ion or ions are shown to be absent from the following samples? a. The solution does not turn red when treated with KSCN (potassium thiocyanate) FE?³ is absent Fe?³ + 3SCN ? Fe(SCN)? Red color compound b. The solution gives a light purple color when placed in a hot flame. K? c. The solution does not turn dark blue when treated with ammonia (NH?) solution. CU?² is absent CU?² + 4NH? ? Cu(NH?)?²? blue color complex 3. Using the equation for the reaction involved in the test for the calcium ion as an example, write the equation for the test for chloride ion. Be sure to indicate which is the precipitate. 4. What do you think would happen if you treated a sample of tap water with some silver nitrate (AgNO?)? Explain. It will form a cloudy solution chloride ions react with silver ions to form silver chloride.

          1. Which ion is present in each of the following samples?
a. The sample gives a white precipitate when treated with AgNO? (silver nitrate).
Cl?¹ chloride ion
b. The sample gives a light purple color when placed in a hot flame.
CS?
c. The sample gives off bubbles when treated with acid.
CO??² ion
CO??² + 2h? ? CO? + H?O ? gives off bubbles
2. Which ion or ions are shown to be absent from the following samples?
a. The solution does not turn red when treated with KSCN (potassium thiocyanate)
FE?³ is absent Fe?³ + 3SCN ? Fe(SCN)? Red color compound
b. The solution gives a light purple color when placed in a hot flame.
K?
c. The solution does not turn dark blue when treated with ammonia (NH?) solution.
CU?² is absent
CU?² + 4NH? ? Cu(NH?)?²? blue color complex
3. Using the equation for the reaction involved in the test for the calcium ion as an example, write the equation for the test for chloride ion. Be sure to indicate which is the precipitate.
4. What do you think would happen if you treated a sample of tap water with some silver nitrate (AgNO?)? Explain.
It will form a cloudy solution chloride ions react with silver ions to form silver chloride.

1. Which ion is present in each of the following samples?
a. The sample gives a white precipitate when treated with AgNO? (silver nitrate).
Cl?¹ chloride ion
b. The sample gives a light purple color when placed in a hot flame.
CS?
c. The sample gives off bubbles when treated with acid.
CO??² ion
CO??² + 2h? ? CO? + H?O ? gives off bubbles
2. Which ion or ions are shown to be absent from the following samples?
a. The solution does not turn red when treated with KSCN (potassium thiocyanate)
FE?³ is absent Fe?³ + 3SCN ? Fe(SCN)? Red color compound
b. The solution gives a light purple color when placed in a hot flame.
K?
c. The solution does not turn dark blue when treated with ammonia (NH?) solution.
CU?² is absent
CU?² + 4NH? ? Cu(NH?)?²? blue color complex
3. Using the equation for the reaction involved in the test for the calcium ion as an example, write the equation for the test for chloride ion. Be sure to indicate which is the precipitate.
4. What do you think would happen if you treated a sample of tap water with some silver nitrate (AgNO?)? Explain.
It will form a cloudy solution chloride ions react with silver ions to form silver chloride.

Added by Gabriel H.

Question

Please give Ace some feedback