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Unformatted text preview: M c a l c u l a t e d- M a c t u a l M a c t u a l * 1 0 0 % Calculations Part A- Class Data: Element A B C Molar Mass of AgX 174g/mol 242 g/mol 142g/mol Molar Mass of “X” 66.13g/mol 134.13 g/mol 34.13gmol Element “X” Bromine Iodine Chlorine Sample Calculations for Element A Mass of Precip. = 1.74g Molar Mass=(mass precip.) / (moles produces)= (1.74g)/(0.01mol)= 174. g/mol Molar Mass of Element= (molar mass) – (molar mass of Ag)= (174.g/mol)- (107.87g/mol)=66.13g/mol Own Data: Element C Mass of Precipitate=(mass of precip.+filter paper) - (mass of filter paper)= 1.61g-0.18g=1.43g Molar Mass=(mass precip.) / (moles produces)= (1.43g)/(0.01mol)= 143. g/mol Molar Mass of Element= (molar mass) – (molar mass of Ag)= (143.g/mol)- (107.87g/mol)=35.13g/mol Percent error= = 35.13 g / mol- 35.45 g / mol 35.45 g / mol *100% =0.85% error Part B- Kandimonium Jar 6- 57.14g Ratio R:S=22:13 Isotope S R M Mass of 10 pieces 10.72g 7.62g 8.84g Mass of 1 piece 1.072g 0.762g 0.884g Amount in isotope...
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This note was uploaded on 11/10/2010 for the course CHEM 106A taught by Professor Phillips during the Fall '08 term at Vanderbilt.
- Fall '08