- #1
JenniferBlanco
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Can someone please verify my results? and help me in one-2 questions?
I did this lab in school today and had some problems filling in the table that followed.
In the lab, we took some Copper Chloride and mixed it dionized water. Then we added in an iron nail and waited for about 20 mins. After 20 mins we decanted the water(threw it away) and were left with copper+a lil bit of water which was later dried.
The following is the data I have
Mass of Beaker --> 0.906
Mass of Beaker and Copper Chloride --> 12.44
Mass of Nail before reaction-->1.729
Mass of Nail after reaction-->1.444
Mass of Beaker and dry copper[dry]-->10.345
The questions that followed were to calculate moles and mass.
1>Mass of Copper formed.
For this,it should be 12.44-10.345 =2.095gms
2>Moles of Copper
For this I did 2.095/63.5= .329moles
3>Mass of Iron reacted
1.729-1.444=.285gms4>Moles of Iron
.285/55.8=.005
5>Ratio of moles of Iron to Copper
_______________________________________________
I guess I screwed up on the calculations or something on the Mass of Iron Reacted which gave me .285 gms. This I feel has screwed my moles of Iron up. I don't know where I am going wrong in this.
If someone can help me out,I would be greatful. I am kinda guessing the mole ration should be 1:1.Jen
I did this lab in school today and had some problems filling in the table that followed.
In the lab, we took some Copper Chloride and mixed it dionized water. Then we added in an iron nail and waited for about 20 mins. After 20 mins we decanted the water(threw it away) and were left with copper+a lil bit of water which was later dried.
The following is the data I have
Mass of Beaker --> 0.906
Mass of Beaker and Copper Chloride --> 12.44
Mass of Nail before reaction-->1.729
Mass of Nail after reaction-->1.444
Mass of Beaker and dry copper[dry]-->10.345
The questions that followed were to calculate moles and mass.
1>Mass of Copper formed.
For this,it should be 12.44-10.345 =2.095gms
2>Moles of Copper
For this I did 2.095/63.5= .329moles
3>Mass of Iron reacted
1.729-1.444=.285gms4>Moles of Iron
.285/55.8=.005
5>Ratio of moles of Iron to Copper
_______________________________________________
I guess I screwed up on the calculations or something on the Mass of Iron Reacted which gave me .285 gms. This I feel has screwed my moles of Iron up. I don't know where I am going wrong in this.
If someone can help me out,I would be greatful. I am kinda guessing the mole ration should be 1:1.Jen