Chemistry, 11.09.2021 14:00 googoomylizard
Câu 47: Cách pha chế dung dịch từ hoá chất tinh khiết, phát biểu sai:
A. Tính khối lượng chất tan
B, Cân chính xác khối lượng chất tan bằng cân phân tích
CHoà tan hoàn toàn chất tan bằng V, (I) nước cất (V=V cần pha)
D. Định mức đến V (1) bằng nước cất, dùng bình định mức
Answers: 2
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Câu 47: Cách pha chế dung dịch từ hoá chất tinh khiết, phát biểu sai:
A. Tính khối lượng chất tan<...
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