下列实验操作中,错误的是( ) (1)用托盘天平称取5.2g NaCl(2)用50mL量筒量取5.2mL盐酸(3)用蒸发皿加热硫酸钠溶液制取Na 2 SO 4 晶体(4)用100mL容量瓶配制50mL 0.1mol/L H 2 SO 4 溶液(5)用带玻璃塞的试剂瓶存放NaOH溶液(6)用蒸发皿加热氯化钠溶液时,至溶液中析出较多固体时停止加热.
A.
(2)(3)(5)
B.
(2)(3)(4)
C.
(1)(4)(5)
D.
(2)(4)(5)
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举一反三
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