Question

#11 a b c and #12

11. You have dropper bottles containing solutions of NaCl(aq), KSOs(aq), and Ba(NOs)(ag) a. Which two bottles would you combine if you don't want any precipitate to form? b. If you combine KSOs(aq) and AgNOs(aq) and the solution becomes a very cloudy white, what compound forms the precipitate? Write the balanced molecular equation and the net ionic equation for the reaction of NaCl(aq) and AgNO3(aq) c. 12. You have a piece of metal, a graduated cylinder, a balance, a ruler, and a supply of water. Describe in detail how you will determine the density of the metal. Sketch a data table that includes space for all the data you will need to collect to find the density.

Answer 1

la @g), Can be combinedもavond itete is i'n So luble in oter Nano a) C9)

2) Ain To letermine tte densty given meta Aunlu, wotes, Metal piea Procedoe ci To de tannine te ma et Jiven by Ie balave fet (i) To datennine to vo lurs ftio tiven pes one side, and pla ee weights 엠 len an balanced. ot mass f o et ya weights place n pan.

velu eas cy lundb Fill bte 8iven gaadwdf cylinder coi tt, ob senvitems in e ata table bel 7metat object form. co atan level aitt Vo Lune (Cc)

.Mass(3) (3) 一 ST ni

Precautions in calculating density of the metal

1)Ensure metal substance be dry and free of any sticky materials. 2) Check the pans of thebalance be exactly same on both sides before to start weighing. 3) While placing metal object into the cylinder containing water, take care not to overflow or expelling water from the cylinder.