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Lead Shot Lab January 10th 2018
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Purpose and Hypothesis
Purpose: The purpose of this experiment is to determine the specific heat capacity, c, of lead, Pb. Hypothesis: The specific heat capacity of lead will be determined using calorimetry techniques and will be approximately the accepted value of J / g °C
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Diagram
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Data mh = ____________ Ch = _____________
Cold “c” Hot “h” Vc = 75.0 ± __________ mL Cc = ____________ J / g °C Tic = __________ ± __________ °C Tf= ___________± __________ °C mh = ____________ Ch = _____________ Tih= ____________±__________°C Tf = _____________±_________°C
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Analysis ρH2O = 1.0 g / mL mc = _________ Heat equation Qc = mc cc ΔT
Cold substance Hot substance ρH2O = 1.0 g / mL mc = _________ Heat equation Qc = mc cc ΔT Qc = mc cc (Tf – Tic) _________ = __________ Qc = -(mh ch ΔT) Qc = - (mh ch (Tf – Tih))
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Conclusion Calculate the experimental error of the specific heat capacity of lead, Pb. The accepted value for the specific heat capacity of lead is 0.159 J / g °C. Calculate the percent error (%) of the specific heat capacity of lead, Pb. What factors could have accounted for the error in specific heat capacity. Name two.
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