I have 2.248g of Cd dissolved in HCl [3.00]M. The volume I got to dissolve Cd is 6.67mL (please let me know if that's wrong). When excess Na2S is added to the reaction, CdS precipitates. What is the mass of CdS to be obtained? I feel so lost! can someone please explain??

Question

anonymous · Answer

all of the Cd dissolved in HCl?

kittykitty04 · Answer

yes. the sample of Cd dissolved in HCl

anonymous · Answer

calculate moles of Cd. when u add excess Na2S,Cd is limiting agent. moles of Na2S equal moles of Cd then calculate mass of percipitae.

anonymous · Answer

got it?

kittykitty04 · Answer

Hmmm I think so. I'll try and see what I get. Thank you! ^_^

anonymous · Answer

i'll hope it's help you