Based upon the Beer's law plot shown in the figure for the absorbance of CuSO4 (aq) versus its concentration, what mass of copper could be produced by a complete reaction of excess zinc metal with 50.0 mL of CuSO4 (aq) that has a measured absorbance of 0.685?

Question

anonymous · Answer

x Concentration (mol/L) | y Absorbance 
0.08 | 0.186 
0.16 | 0.372 
0.24 | 0.587 
0.32 | 0.753 
0.40 | 0.955 
--- 
Linear Fit for Latest/Absorbance 
y = mx+b 
m (Slope): 2.399 
b (Y-intercept): -0.005494 
Correlation: 0.9995 
RMSE: 0.01151

jfraser · Answer

the absorbance gives you the information to find the moles of copper ion available to react with the zinc metal, so find the moles of copper, and use the molar mass to find the mass of copper that could be produced

anonymous · Answer

I got 9.09 grams of Cu