How to determine the % calcium of an unknown sample by gravimetric method
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- Explain the types of Calcium oxalate crystals with drawing?In the determination of crude fiber, why should the sample used be finelygrounds and exhausted with ether before it is boiled with acid and alkali?What non-titrimetric method can be used to determine the iodine value of edible oil? Discuss its basic principles and general methods involved.
- Upon the experiment of the Analysis of Saliva, What possible precipitate can form in the test for calcium and precipitate in the test for inorganic phosphate?When conducting a flame test for sodium iodide, is the result positive or negative?Explain why it is not possible to directly measure RV by spirometry.
- Enumerate at least 5 specific medical applications of complexometric titration and discuss each.If the sharpness of V-notch is more in one specimen than the other, what will be its effect on the test result? note: briefly explaination onlyTwo students independently determine the volume of water delivered by a 10.00-mL pipet. Each student takes 8 measurements, then computes the average volume delivered and the standard deviation. The results are tabulated below. Average St. Dev. Student A 10.4 mL ±0.7 mL Student B 10.00 mL ±0.02 mL Which statement best describes the results? 1)A: good precision, poor accuracy. B: poor precision, good accuracy. 2)A: poor precision, good accuracy. B: good precision, poor accuracy. 3)A: poor precision, poor accuracy. B: good precision, good accuracy. 4)A: good precision, good accuracy. B: good precision, good accuracy. 5)A: poor precision, poor accuracy. B: poor precision, poor accuracy.