Students learn to: Use basic output from an analytical tool (buret) to calibrate that tool. Use data to perform error analysis (identify the presence of random and/or systematic errors). Standardize a sodium hydroxide (NaOH) solution using titration of potassium hydrogen phthalate (KHP) using a calibrated buret. Report the determined concentration of the standardized NaOH solution. Communicate…
The utility of MATHCAD for familiar calculations using pH and solubility is demonstrated.
After completing this activity, students will be able to: Choose appropriate glassware for solution preparation Demonstrate proper solution preparation Dilute and recalculate the original concentration of solution
Students explore calculations of concentration related to dilutions and the propagation of error when performing dilutions.
After completing this activity, students will be able to: Convert between different types of concentration units. Calculate the final concentration of a solution following dilution(s). Determine the original amount of an analyte in a sample following quantitative sample preparation.
After completing this activity, students will be able to: Choose the appropriate piece of glassware to ensure the desired level of precision of a particular solution. Compare the tolerance of various pieces of glassware.
Students learn to: Determine volumes and concentrations in dilution calculations. Convert between different concentration units (e.g., ppm to M). Interpret a procedure for making a particular solution and assess the advantages of different dilution schemes. Choose the appropriate piece of glassware to ensure the desired level of precision of a particular solution. Compare the tolerance of…
Students learn to: Apply concepts of accuracy, tolerances, and significant figures to a practical laboratory scenario. Develop scientific “common sense”. Communicate (oral and written) scientific concepts related to calibration and standardization.
Students learn to: Learn basic Excel functionality, including data entry, mathematical manipulations, built-in functions (AVERAGE, STDEV), importing data, etc. Use Excel to plot data (scatter plot) and format for scientific reports. Find the best-fit line for x-y data using least squares regression. This will be accomplished using two different methods in Excel: Add trendline to scatter…
Students learn to: Use Excel to create a basic spreadsheet. Translate mathematical equations into Excel functions. Provide Spreadsheet Documentation for your work. Use the extra features of Excel to communicate your results clearly.