NEET 2025 Chemistry question
1 gram of sodium hydroxide was treated with 25 mL of 0.75 M HCl solution, the mass of sodium hydroxide left unreacted is equal to
Answer: (C)
Solution
NaOH: 25 mmol; HCl: 18.75 mmol; left: 6.25 mmol 40 = 250 mg.
1 gram of sodium hydroxide was treated with 25 mL of 0.75 M HCl solution, the mass of sodium hydroxide left unreacted is equal to
NaOH: 25 mmol; HCl: 18.75 mmol; left: 6.25 mmol 40 = 250 mg.