محمـد القاسـم | كـلـيـة الصيـدلـة 💊

كوِز العضوية مختبر 4-5 📍group F Q1/write the ojective and chemical princible of copper sulfate? Q2/define iodimetry and what is the physical properties of sodium thiosulfate and write the chemical formula of sodium thio sulfate pentahydrate? 📍Group D Q1/Why do we add potassium thiocynide near the end point with the equation Q2/In sodium thiosulphate why do we use it with dialysis patient and with cisplatin 📍Group(B) Q1\ write the second part of equation copper sulfate and determine the oxidizing and reducing agent ? Q2\ why sodium thiosulfate is considered secondary standard substance? 🎯GROUP_E Q1//Why we avoid added thiocynid in the begining of titration? Q2/// Explain about Iodometric titration method? #Ph_organic_Lab

عضوية عملي | اسئلة مهمة حول المختبر "4" Standardization Sodium thiosulfate Q1/ Why the sodium thiosulfate solution should be preserved in tightly  stoppered bottles and be kept away from direct sunligh A/ because the sodium thiosulfate is a hygroscopic substance,react with the atmospheric co2 , slowly decomposition to the element sulfer, and sodium thiosulfate change in their reducin power due to the action of co2, sunlight,dust Q2 /How we can use the sodium thiosulfate as a Antidote for cyanide poisoning? A/ sodium thiosulfate act as sulfer donor that conversation the cyanide to thiocyanate, which it easily excreted in the urin Q3/why we add sodium carbonate ,in the preparation of the sodium thiosulfate? sodium carbonate prevent the decomposition of the thiosulfate in aqueous medium ,so it maintain the solution naturally or slightly alkaline and then rated the decomposition of the thiosulfate Q4/How we can get the iodin in the standardisation of sodium thiosulfate? A/ through the oxidation of the potassium iodide by the potassium dichromate in acidic medium Q5/ Why we need to add sodium bicarbonate in the standardisation of sodium thiosulfate? To prevent the atmospheric oxidation of the potassium iodide to iodin ( In order to obtain an accurate reaction endpoint) ✨ريمـان آل مـحمود✨ #Ph_organic_Lab

بايو نظري | Citic acid cycle ✨محمد عبدالوهاب✨ #Bio2_Lec

كوِز العقاقير مختبر بيورين و black pepper Group E Q1/Write the Percentage of caffeine equation Q2/The Extraction of piperine from black pepper by-------------- method, because----------------------- Group C 1) nucleus of caffeine is ......... 2)pharmacological activity of piperine are ................,...........,........... Group B 1- piperine is extracted form ------------and it belong -------------- 2-purine alkaloids precence in tea leaves is -------------, ---------------and ------------- Group D 1-The first step in extracting piprine from black pepper is using ........ 2-The solvent used in the extraction of caffeine هذا السؤال كان اختيارات chloroform Ether Ethanol Methanol #Pharmacognosy3_Lab

امتحان مد عقاقير نظري بغداد/كلية المصطفى #Pharmacognosy3_Lec

اسئلة العام لـ امتحان بايو العملي اول 4 محاضرات ... #Bio2_Lab