Page 1 of 1
a - pipette 10.00 mL of 0.100 M CaCl2 stock into 100 ml
volumetric flask
b - in 100 ml volumetric flask prepare a 1:10 d
Posted: Mon May 16, 2022 1:36 pm
by answerhappygod
- A Pipette 10 00 Ml Of 0 100 M Cacl2 Stock Into 100 Ml Volumetric Flask B In 100 Ml Volumetric Flask Prepare A 1 10 D 1 (65.8 KiB) Viewed 46 times
This is your experimental data for Experiment #8, Determination of Ca in a Supplement by Ion Selective Electrode. YOU MUST READ THE EXPERIMENTAL WRITE-UP AND COMPLETE THE PRE-LAB PRIOR TO DOWNLOADING THIS DATA!! Your unknown number is: 804 Your sample weighed 1.2860 grams You follow the procedure making up your unknown. You made your standards, and when you measured them on the ISE meter produced the following data: Standard A has a meter reading of -27.20 mv Standard B has a meter reading of -56.11 mv Standard C has a meter reading of -85.69 mv Standard D has a meter reading of -95.03 mv The unknown has a meter reading of -87.56 mV Produce and submit a spreadsheet with a PROPERLY LABELLED calibration curve graph with a linear least square calculation of the best fit line. Calculate the following in CLEARLY LABELLED cells in your spreadsheet. The slope = 15.138 X The intercept = 29.21 X The R2 value = The total amount of Ca in the unknown you were given at the start of the experiment = The wt% of Ca in the unknown = 6.195 X % mg