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accuracy acid-base acid-base titration amino acid back-titration calibration curve chemical reactivity complexation titration concentrations confidence interval derivative titration curve determinate error dilution dimensional analysis end point equivalent weight external standardization extraction graphing indeterminate error interferent ion-exchange chromatography ion-selective electrode ladder diagram mean median method development mixtures non-aqueous precision propagation of error quantitative analysis repeatability reproducibility sampling constant sampling plan selectivity selectivity coefficient solubility standard addition standard deviation standards student-generated data t-test titration curve### Archives

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# Tag Archives: propagation of error

## Analysis of Basic Copper Carbonates

The %w/w Cu in a synthetic basic copper carbonate may be found by reducing and isolating the copper as Cu metal. To calculate the %w/w Cu we use the following formula The following is typical data test-tube: 45.6615 g test-tube … Continue reading

In determining the concentration of HCl by titrating against the primary weak base TRIS, the molarity of HCL is calculated using the following equation where GFW is the gram formula weight of TRIS, which is 121.136 g/mol. (a) Calculate the … Continue reading

Posted in Calculation, Error Analysis, Essay Question
Tagged concentrations, dimensional analysis, propagation of error
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## Uncertainity in Dispensing a Reagent

Concentrated HCl is 37.2% w/w HCl (±0.5% w/w) and has a density of 1.19 g/mL (±0.01 g/mL). Suppose that you need to dispense 0.0500 mol of HCl with an uncertainty of no more than ±2% (that is, an uncertainty of … Continue reading

Posted in Calculation, Error Analysis, Essay Question
Tagged dimensional analysis, propagation of error
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## Propagation of Error in Preparing Solutions

Suppose you have a bottle of 53.4% w/w NaOH (the density of which is 1.52 g/mL) from which you are to prepare a 1.000-L solution of 0.534 M NaOH. Two obvious ways to prepare the solution are: (1) weigh out an … Continue reading