1、NH4+的检验:
⑴实验原理:铵盐与强碱溶液在加热时发生下列反应:
NH4Cl + NaOH — __________________ NH3的检验__________________ _____
⑵实验步骤:
①__________________ ②_______ ___________ ③__________ ____
⑶实验现象:________________________________________________________________
⑷实验结论:
2、Cl-的检验:
⑴实验原理:NH4Cl + AgNO3 — _______________________
⑵实验步骤:
①__________________ ②_______ ___________ ③__________ ____
⑶实验现象:________________________________________________________________
⑷实验结论:
3、SO42-的检验:
⑴实验原理:(NH4)2SO4 + BaCl2 — _______________________
⑵实验步骤:
①__________________ ②_______ ___________ ③__________ ____
⑶实验现象:________________________________________________________________