What could be added to confirm the identity of precipitate

Reference no: EM131154290

Lab 7 the Chemistry and qualitative analysis of cations: group I

1. Propose a separate Ag⁺ from solution containing Fe²⁺ and Sn⁴⁺

2. Use le Chatlier's principle to predict what will happen S2in the following equation when the Phis decreased (2 points)
H₂S (aq) +2H₃O (aq) +S² (aq)

3. If the application of heat causes a reaction to produce more products, is the reaction endothermic or exothermic?

Lab 8 the chemistry and qualitative analysis of cations: Group II

4. What is the net ionic equation when Cu (NO₃)₂(aq)?

5. A student has a yellow reside that is either SnS₂ or Cds. What could be added to confirm the identity of the precipitate?

6. A student has carries out a separation scheme starting with Bi³⁺, Cd²⁺and Cu²⁺. At the end of the experiment, the student has blue Bi (OH)₃ solid instead of white .What is likely the problem?

Lab 9 the chemistry and qualitative analysis of cations: group III and IV

7. A solution contains either Ba²⁺ or Ca³⁺. What test could be used to determine the identity of the cation?

8. What is true about the Group IV hydroxides compared to the group III hydroxides?

Reference no: EM131154290

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