Hi, i need help answering these question if you can please give me the right ans
ID: 904274 • Letter: H
Question
Hi, i need help answering these question if you can please give me the right answer to help me finish my hw. thank you. T/F= True or False
1.In a solution of Na+, K+ and Ag+. To remove the silver ion from the mixture, ______ is added.
2.In the formation of a complex ion, the molecules that attach to the cation are called ligands.T/F
3. When titrating a weak base with a strong acid, at equivalence point the solution will have a pH lower than 7.0. T/F
4.The percent ionization of a 0.01M base solution is 0.30. Calculate the Kb value
5.The pH of a 0.01M base solution is 10.3. Calculate the Kb value.
6.The combination of (CH3)2NH and (CH3)2NH2Cl can be used to prepare a buffer. T/F
7.How many grams of a sodium salt would you need to prepare 500 ml of a buffer at pH = 3.18, using 0.100M solution (use 3 sig fig , atomic wts to whole number)
8.A solution of a mixture of 0.1M NaF acid and 0.1M N2H4Cl will be basic. T/F
Explanation / Answer
1) Add Nitric Acid
2) True
3) True
4) 9
5) 2.511*10^-19
6) True
8)False
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