Αποτελέσματα Αναζήτησης
Hydrogen acetate (1:1) Molecular formula: C 4 H 8 O 4. Average mass: 120.104. Monoisotopic mass: 120.042259. ChemSpider ID: 26667348.
A quick way to identify acids is to see if there is an H (denoting hydrogen) in front of the molecular formula of the compound. To name acids, the prefix hydro- is placed in front of the nonmetal modified to end with –ic .
Acetic acid / əˈsiːtɪk /, systematically named ethanoic acid / ˌɛθəˈnoʊɪk /, is an acidic, colourless liquid and organic compound with the chemical formula CH3COOH (also written as CH3CO2H, C2H4O2, or HC2H3O2). Vinegar is at least 4% acetic acid by volume, making acetic acid the main component of vinegar apart from water.
Recognize polyatomic ions in chemical formulas. We have already encountered some chemical formulas for simple ionic compounds. A chemical formula is a concise list of the elements in a compound and the ratios of these elements.
Nomenclature and common formula. When part of a salt, the formula of the acetate ion is written as CH. 3CO−. 2, C. 2H. 3O−. 2, or CH. 3COO−. Chemists often represent acetate as OAc − or, less commonly, AcO −.
Define ionic and molecular (covalent) compounds. Predict the type of compound formed from elements based on their location within the periodic table. Determine formulas for simple ionic compounds. In ordinary chemical reactions, the nucleus of each atom (and thus the identity of the element) remains unchanged.
