7. Suppose that, when recovering the copper metal, a student did not filter off all of the aqueous solution and thus weighed a "wet" sample of copper. All other steps were performed correctly. a. How would this affect the perceived mass of copper in the sample? b. How would this affect the perceived mass of chlorine found in the sample? c. How would the determined formula of the hydrate change?

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Hi, I found the data in the attached table.  The question I am struggling with is attached as well.  Particuarly, the last sub-question, part C, which is about what happens to the hydrate formula if the copper sample (or crucible) is "wet" rather than "dry."  I think that the hydrate formula would increase from 2 to 3, but could you confirm and explain what steps I would take to know this for sure?  Thank you

Trial 1
Trial 2
Mass of dry crucible (g)
Mass of dry crucible + hydrate (g)
Mass of dry crucible + dehydrated sample (g)
Mass of water driven off (g)
Moles of water driven off (mol)
Mass of copper metal recovered (g)
Moles of copper metal (mol)
Mass of chlorine (g)
Moles of chlorine (mol)
Formula of the unknown hydrate
25.268
24.910
28.106
27.373
27.503
26.860
0.603
0.0335
1.060
0.01668
1.175
0.03315
2(H_2)0
0.513
0.0285
0.921
0.0145
1.029
0.02903
2(H_2)0
Transcribed Image Text:Trial 1 Trial 2 Mass of dry crucible (g) Mass of dry crucible + hydrate (g) Mass of dry crucible + dehydrated sample (g) Mass of water driven off (g) Moles of water driven off (mol) Mass of copper metal recovered (g) Moles of copper metal (mol) Mass of chlorine (g) Moles of chlorine (mol) Formula of the unknown hydrate 25.268 24.910 28.106 27.373 27.503 26.860 0.603 0.0335 1.060 0.01668 1.175 0.03315 2(H_2)0 0.513 0.0285 0.921 0.0145 1.029 0.02903 2(H_2)0
7. Suppose that, when recovering the copper metal, a student did not filter off all of the aqueous
solution and thus weighed a “wet" sample of copper. All other steps were performed correctly.
a. How would this affect the perceived mass of copper in the sample?
b. How would this affect the perceived mass of chlorine found in the sample?
c. How would the determined formula of the hydrate change?
Transcribed Image Text:7. Suppose that, when recovering the copper metal, a student did not filter off all of the aqueous solution and thus weighed a “wet" sample of copper. All other steps were performed correctly. a. How would this affect the perceived mass of copper in the sample? b. How would this affect the perceived mass of chlorine found in the sample? c. How would the determined formula of the hydrate change?
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