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Aldrich-D206709; 2,2-Diphenylethylamine 0.96; CAS Number: 3963-62-0; Linear Formula: (C6H5)2CHCH2NH2; find related products, papers, technical documents, MSDS & more at Sigma-Aldrich.
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1) Determine the grams of each element present in the original compound. Carbon is always in CO 2 in the ratio (12.011 g / 44.0098 g), hydrogen is always in H 2 O in the ratio (2.0158 g / 18.0152 g), etc. 2) Convert grams of each element to the number of moles.
Solution: 12.0 g carbon is about 1 mole of carbon; 2.0 g of H is about 2 moles and 16.0 g O is about one mole. So the empirical formula is CH 2 O. The molecular weight of this molecule is 30 g/mole, so you divide 60/30 to find how many times you must multiple your empirical formula.
22 Οκτ 2022 · In general chemistry 1 we calculated the pH of strong acids and bases by considering them to completely dissociate, that is, undergo 100% ionization. We will now look at weak acids and bases, which do not completely dissociate, and use equilibrium constants to calculate equilibrium concentrations.
For example, consider a covalent compound whose empirical formula is determined to be CH 2 O. The empirical formula mass for this compound is approximately 30 amu (the sum of 12 amu for one C atom, 2 amu for two H atoms, and 16 amu for one O atom).
H 2 is a molecular formula; it represents a diatomic molecule of hydrogen, consisting of two atoms of the element that are chemically bonded together. The expression 2H, on the other hand, indicates two separate hydrogen atoms that are not combined as a unit.
