C125 midterm revision - Study guides, Class notes & Summaries
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C125 MIDTERM REVISION EXAM QUESTIONS WITH CORRECT ANSWERS
- Exam (elaborations) • 7 pages • 2024
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C125 MIDTERM REVISION EXAM QUESTIONS WITH CORRECT ANSWERS 
 
A student experimentally determined the mass % compisition of Ca in CaCO3 to be 38.9%. What is the real mass % composition of CaCO3? What is the % error? - Answer- real = 40.04% 
error = 2.858% 
 
Recall the procedure (chemical measurements). How would the following source of errors affect calculated density of water? 
 
A balance was improperly calibrated and always weigh masses 1.0g less than the real masses - Answer- no effect (take...
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C125 Midterm Revision Questions and Answers
- Exam (elaborations) • 7 pages • 2024
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Available in package deal
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- $11.49
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rearrange the ideal gas equation, PV=nRT to the form y=mx+b for the case where V is plotted on the y-axis and n on the x-axis. Name the equation, slope,a dn intercept - Answer- V= RT/P (n) 
 
slope: RT/P 
 
intercept: none 
 
Interpolation - Answer- estimating a value within the range of measured data 
 
extrapolation - Answer- projection; conjecture; V. extrapolate: infer (unknown information) from known information 
 
best fit line equation commonly takes y=mx+b format. What are your y, x, and...
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C125 Midterm Revision
- Exam (elaborations) • 7 pages • 2023
-
- $9.99
- + learn more
Interpolation - Answer- estimating a value within the range of measured data 
 
extrapolation - Answer- projection; conjecture; V. extrapolate: infer (unknown information) from known information 
 
best fit line equation commonly takes y=mx+b format. What are your y, x, and b? - Answer- y = dependent variable (v) 
x = independent (n) 
m = slope (RT/P) 
b = intercept 
 
In assignment 2 (excel), students are asked to obtain the slope and intercept by rearranging the Ideal Gas Equation into y=mx+b ...
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