The invention relates to an indicator for on-site detecting formaldehyde gas density, which is composed of a main agent, a promoter, an interface modifier and a carrier, wherein the main agent is the mixture of acid hydroxylamine and hydrogen ion density indicator. The invention can realize online detection by arranging the material into a detector which can quantitatively display different ...
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Get PriceWhat instrument does a chemist use to count atoms? Avogadro's number. ... A compound has the empirical formula CH2O and a formula mass of 120.10 amu. What is the molecular formula of the compound? ... Noble-gas configuration: [Kr] 5s2 4d10 5p2 Electron configuration: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p2
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