Which of the following gives a buffer solution when equal volumes of the two solutions are mixed and why? 0.100 m nh3 and 0.100 m naoh 0.100 m nh4cl and 0.100 m naoh 0.200 m nh4cl and 0.100 m hcl 0.200 m nh4cl and 0.100 m naoh?
Question: Which of the following gives a buffer solution when equal volumes of the two solutions are mixed and why? 0.100 m nh3 and 0.100 m naoh 0.100 m nh4cl and 0.100 m naoh 0.200 m nh4cl and 0.100 m hcl 0.200 m nh4cl and 0.100 m naoh?
Certainly! When equal volumes of the two solutions are mixed, the following combinations will give a buffer solution:
1. 0.10 M NH4Cl and 0.10 M NH3
2. 0.20 M NH4Cl and 0.10 M NaOH
These mixtures form buffer solutions because they involve a weak acid (NH4Cl) and its conjugate base (NH3). The presence of both the weak acid and its conjugate base allows the solution to resist changes in pH when small amounts of acid or base are added . Other options either result in complete neutralization or do not meet the conditions necessary to form a buffer solution.
Remember, buffers are essential for maintaining stable pH levels in various chemical processes!
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