Question

Please just complete the questions that don’t require any more supplemental information
1. Write out the net ionic equation for the reaction you performed in Formula Weight of a Copper Compound. Assume that you start with a Cu?- salt. Based on the reactions we have discussed, what type(s) of reaction does this represent? __( ) + ( ) → _ C + ( ) reaction type: 2. In a separate experiment, you determine that the percent-by-mass of Ag in a salt is 75.27 %. Assuming that there is one silver atom per formula unit, calculate the formula weight. The atomic mass of Ag - 107.9 amu. formula weight: amu 3. Write an equation for each of the following reactions. Construct an activity series based on these results. Include H2 in the series. (a) Zinc reacts with Pb 2+ ions to form lead metal and Zn2+ but silver will not react with Pb 2+ ions. (b) Both zinc metal and lead metal will react with H + (aq) from HCl to form hydrogen gas. Lead reacts very slowly. Silver will not react with HCl.

Answer 1

Questions 1 and 2 require additional information. Question 3 is complete and solution is provided in this section:

Activity series of various metals is asked.

Page: Date: / - metals in Sol: 13 cal first of all , an activita is a series for a list of metal the increasing order of reactivit towards displacement reactions reant with water and reaction with ctions reaction con with acids. ions to form I zit reacts with lead and zu2t Pb²+ i.e. Zn²+ Zuls) + Pb2+ Zutte 1 This reaction is an example et displacement reaction. It explains that 1 Zufs) is more reactive than pbfol. does not react with Pb2+ As Silver (Ag) i.e. the reaction : 1 2 Aq(s) + Pb2+ does not occur => Ag is of 2 Ag+ + Pb less reactive than Pb. is from a reactivity onder Zuls) Ago) - increasing order. reacts with He 1 (b) Both zu and Pb to form H₂ gas. He is a strong Astrong electrolyte . - Hul (aq) - which makes it a acid le. retragt cila) undergo is faster does en Pb Heo a given that zully reaction with with her. Ag doesuot react with The reaction with He is : zu + 2H U > Zucht the b + 2HU - Phlut As Ag is unable to evolue H₂ from Hell. > H₂ is more reactive than ng => from (b) overall order of reactivity ý : Zu/s) > Pb (s) > H₂ > Ag (1) (c) Potassium (K) reacts violently with a cold water and other metals donot. The reaction of potassium with ho is : K + H₂O - KOH + H₂ ie. K librerates H₂ when reacts with cold water 1 = reactive k is the most _quouslaa — Scanned with CamScanner

From (a), (b) and (c) we get the activity series in the increasing order as:

K > Zn > Pb > H2 > Ag.