1) Which substances in the table are strong acids? which are strong bases? 2) Wh
ID: 949604 • Letter: 1
Question
1) Which substances in the table are strong acids? which are strong bases?
2) Which substances in the table are weak acids? which are weak bases?
3) Which substances in the table should contain common ion?
4) Which solutions in table one are buffers?
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I know this is alot of work but i really need the help to understand it,
I know the definitions of a buffer- is a system containing a weak acid and its weak conjugate base in concentrations that resist large changes in pH.
Common Ions- are ions that originate from more than solution and are still present in the final reaction. The example of a common ion is the equation: HC2H3O2(aq) + H2O (l) <----> C2H3O2-(aq) + H3O+ (aq)
One last piece of info that i was told by my professor was that, all buffers are common ions but not all common ions are buffers.
Any help will be appreciated and I will rate anyone who can help me, thank you!!
Solution Compostion 1 0.10 M HC2H3O2 2 5 mL 0.10 M HC2H3O2 + 5 mL water 3 1 mL 0.10 M HC2H3O2 + 99 mL water 4 5 mL 0.10 M HC2H3O2 + 5 mL 0.1 M HCl 5 0.10 M H3PO 6 0.10 M NH3 7 0.10 M NH4NO3 8 50 mL 0.10 M NH3 + 50 mL 0.10 M NH4NO3 9 10 mL Solution 8 + 6 mL water 10 10 mL Solution 8 + 5 mL water + 1 mL 0.10 M HCl 11 10 mL Solution 8 + 6 mL 0.10 M HCl 12 10 mL Solution 8 + 5 mL water + 1 mL 0.10 M NaOH 13 10 mL Solution 8 + 6 mL 0.10 M NaOH 14 10 mL 0.10 M HC2H3O2 + 5 mL 0.10 M NaOH 15 10 mL 0.10 M NH4NO3 + 5 mL 0.10 M NaOHExplanation / Answer
answers :
1) weak acid
2) weak acid
3) weak acid
4) common ion
5) weak acid
6) weak base
7) weak acid
8) buffer
9) buffer
10) buffer
11) buffer
12) buffer
13) buffer
14) buffer
15) buffer
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