A.甲醛 B.水合茚三酮 C.NH4OH D.NaOH
A.物質(zhì)的量濃度:?jiǎn)挝惑w積溶液中所含溶質(zhì)的物質(zhì)的量 B.質(zhì)量分?jǐn)?shù):100g溶液中所含溶質(zhì)的克數(shù) C.質(zhì)量濃度:?jiǎn)挝惑w積溶液中所含溶質(zhì)的克數(shù) D.體積分?jǐn)?shù):100ml溶劑中所含溶質(zhì)的毫升數(shù)
A.準(zhǔn)確稱取0.1mg/L鈣貯備液1.00ml,定容至100ml B.準(zhǔn)確稱取0.1mg/L鈣貯備液10ml,定容至100ml C.準(zhǔn)確稱取0.14g氧化鈣溶解,定容至100ml D.準(zhǔn)確稱取0.014g氧化鈣溶解,定容至100ml