تجربة قياس الكالسيوم في ماء الصنبور وماء الشر ب скачать в хорошем качестве

تجربة قياس الكالسيوم في ماء الصنبور وماء الشر ب

مشروع قياس تركيز الكالسيوم في ماء الشرب وماء الصنبور بمنطقة الشيخ رضوان كما يتم فحص كالسيوم الدم بالتعاون مع مختبر الاسراء والنتائج غير مطابقة للمواصفات الفلسطينية. The experiment project for measuring calcium concentration in tap and drinking water for Al Huda School Steps: Bring 4 test tubes and put 1 ml of the reagent solution in each tube and write them blank - - standard - 1 and 2 TEST. We use 25 µl of standard 10mg / dl concentration titrant into the second tube We use 25 µl of drinking water sample to be tested into the third tube We use 25 l of the tap water sample to be tested into the fourth tube Then mix the ingredients and leave it for 5 minutes at room temperature We set the wavelength 650 on the Spectrophotometer, then zero in through the first tube, then read the samples on the device, which depends on the color degree when calcium interacts with the detector solution and record the values Observation and conclusion: We notice the darker color in the sample that contains the largest amount of calcium, which is the tap water sampl Results Calcium concentration in tap water = 22.49 mg / dl = 224.9 mg / l Calcium concentration in drinking water = 1.44 mg / dl = 14.4 mg / l According to the Palestinian Public Health Laboratories, the calcium ratio is from 100-200 mg / l The results indicate that tap water is hard water, while drinking water in school lacks calcium