想請教下述英語的意思。
An ester 1a (0.1–0.5 mol) was added to ca. 15% aqueous solution containing 3 mol equivalents of sodium hydroxide.
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An ester 1a (0.1–0.5 mol) was added to ca. 15% aqueous solution containing 3 mol equivalents of sodium hydroxide.
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主要想知道ca.是啥意思。
ca.就是后面配的3倍摩爾量的NaOH溶液,為了前面酯的水解~
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大約
大約的意思
ca (circa)
n. ungefähr;