When the preparation of SnCl2 solution, HCl solution is often added to prevent hydrolysis.
A: 正确
B: 错误
A: 正确
B: 错误
举一反三
- When the preparation of SnCl2 solution, HCl solution is often added to prevent hydrolysis. A: 正确 B: 错误
- When two drops of CaCl2 solution were added to the potassium ferrioxalate (III) solution, the solution became turbid, indicating that oxalate is in the outside of the complex. A: 正确 B: 错误
- When two drops of CaCl2 solution were added to the potassium ferrioxalate (III) solution, the solution became turbid, indicating that oxalate is in the outside of the complex.
- What is the volume ratio of HCl solutionto NH3·H2O (pKb=4.75)solution when abuffer solution atpH9.25 is prepared with the same concentration of HCl solutionand NH3·H2Osolutions A: 1:1 B: 1:2 C: 2:1 D: 3:1
- When writing a solution essay, make sure that your proposed solution is feasible.