Problem: Part A. 75.0 mL of 0.10 M HF; 55.0 mL of 0.15 M NaFa. this will be a bufferb. this will not be a bufferPart B. 150.0 mL of 0.10 M HF; 135.0 mL of 0.175 M HCla. this will be a bufferb. this will not be a bufferPart C. 165.0 mL of 0.10 M HF; 135.0 mL of 0.050 M KOHa. this will be a bufferb. this will not be a bufferPart D. 125.0 mL of 0.15 M CH 3NH2; 120.0 mL of 0.25 M CH 3NH3Cl a. this will be a bufferb. this will not be a bufferPart E. 105.0 mL of 0.15 M CH 3NH2; 95.0 mL of 0.10 M HCla. this will be a bufferb. this will not be a buffer

🤓 Based on our data, we think this question is relevant for Professor Al-Nidawy & Green's class at University of Windsor.

FREE Expert Solution

Analyze the Buffer pairs and use the knowledge in the allowed buffer pairs to determine if the reagents are possible buffers. 

Step 1. Establish the possible buffer pairs

A buffer is a solution that can be made up of:

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Problem Details

Part A. 75.0 mL of 0.10 M HF; 55.0 mL of 0.15 M NaF

a. this will be a buffer
b. this will not be a buffer

Part B. 150.0 mL of 0.10 M HF; 135.0 mL of 0.175 M HCl

a. this will be a buffer
b. this will not be a buffer

Part C. 165.0 mL of 0.10 M HF; 135.0 mL of 0.050 M KOH

a. this will be a buffer
b. this will not be a buffer

Part D. 125.0 mL of 0.15 M CH 3NH2; 120.0 mL of 0.25 M CH 3NH3Cl 

a. this will be a buffer
b. this will not be a buffer

Part E. 105.0 mL of 0.15 M CH 3NH2; 95.0 mL of 0.10 M HCl

a. this will be a buffer
b. this will not be a buffer