Trial Burette Reading @Start (MI) Burette Reading @End (MI) 1 2 0.00 11.30 11.30 22.60 3 22.60 33.80 Standard Used: 0.25 M Ca(OH)2 Volume Of Standard Used (MI) ? ? ?
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- Q) water hardness of each trial and average ppm with calculation, please. Hard Water Trial 1 Hard Water Trial 2 Hard Water Trial 3 Initial Syringe Reading 1.0ml 1.0ml 1.0ml Final Syringe Reading 0.88ml 0.84ml 0.85ml Volume of EDTA Consumed 0.12ml 0.16ml 0.15ml Water Hardness ppm CaCO3 Average ppmwhat is the biggest buret size that'll deliver 4.8mL with a relative error less than or equal to 0.5%The internal standard method compensates for errors that affect both the analyte and the reference. True False
- 3. a. Briefly explain why internal standardization method is useful inanalytical chemistry?b. Why does a response factor of an instrument’s detector need to becalculated?Which statements are TRUE regarding internal standards? I. The response factor is calculated by using a mixture containing known amounts of analyte and internal standard and by using detector response to the analyte and the internal standard. II. Internal standards are useful where instrument response or quantity of sample analyzed varies over time. III. Detector response is inversely proportional to concentration. IV. Detector response to analyte and internal standard is assumed to be constant over a range of concentrations A. I, II, and III B. II, III, and IV C. I and II D. I, II, and IVWhich sentence is false about gravimetric analysis? a. It is used for inorganic b. It is used to assay barium c. It is used to assay of d. Relative precision 3% to 4%
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