Polyaniline Synthesis QA3: What is the purpose of the dialysis? Why do we need to change...
CRITICAL THINKING QUESTIONS 1. A pre-weighed dialysis bag which contained a solution of 10% glucose was placed in a beaker containing a solution of 20% glucose. After one hour, the bag was weighed again a. Calculate the % mass change of this dialysis bag from the following information: • Mass of bag before experiment: 15.39 • Mass of bag after experiment: 12.79 b. Determine the tonicity of the beaker when it is compared to the dialysis bag: 2. facell had...
7) (2 points) if we place one dialysis bag (permeable to water but not permeable to Naci) filled with 10% Nach into a beaker of distilled water and wait 2 hours what is the expected result? Explain what would happen to the weight of the bag (you do not need to have specific numbers, just trends). Explain why it happened.
In the above synthesis:
1. What is the purpose of NH4Cl?
2. Why does NH3 need to be added before H2O2?
The compounds will be prepared by the reaction of cobalt chloride, ammonia and hydrogen peroxide as in the following overall equation. 2Co(H20)6Cl2 + 2NH4Cl + 10NH3 + H2O2 → 2Co(NH3).Cl3 + 14H20 However, if the reactants are simply mixed together, the desired product will not form. To get the desired product, the procedure must be done stepwise.
Why do we need normal contango and backwardation theories? How do you execute these theories to make practical investment decisions?
Why we need estate planning and what age we need to do it?
PRELAB EXERCISE EXPERIMENT 21 Synthesis of Aspirin (Acetylsalicylic Acid) What is the purpose of sulfuric acid or phosphoric acid used in the acetylation reaction? Use equations to explain this purpose. The procedure calls for cautious addition of water to the reaction mixture while it is still hot. What purpose does the addition of water serve and why should the addition be done while the reaction mixture is hot? Provide an equation for the reaction involved.Using the quantities of salicylic acid and acetic anhydride...
what is the meaning of LAMP and why do we need it in order to
make the database working?
3. What is the meaning of LAMP and why do we need it in order to make the database working. tahanan ha? why it hecame clawar
Video "What Is Philosophy and Why do We need to Study it? 1. What is Philosophy? Philosophy is 2. Why would anyone need to study Philosophy? 3. List four benefits one might derive from the study of Philosophy. 3.1 3.2. 3.3 3.4. 4. Much like a tree, Philosophy has branches. Which ones? 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 5. What Is "CBT"? 5.1. "CBT" is 5.2. What is the source of "CBT"? 5.3. Whose ideas gave rise to...
Why do we need to have innate reflexes at all? Why do we need involuntary reflexes? In other words, wouldn't we be better off being able to control everything that our body does?
2. Why do we use H3PO4 instead of HCl as a catalyst for the synthesis of cyclohexene? (3 pts.)