1) Determine the number of moles of Br2 in a sample consisting
of:
8.02×1022 Br2 molecules
2.23×1024 Br atoms
11.0 kg bromine
Determine the mass percent H in the hydrocarbon isopentane,
CH3CH(CH3)CH2CH3?
Determine the empirical formula of:
benzo[a]pyrene, a suspected carcinogen found in
cigarette smoke, consisting of 95.21% C and 4.79% H, by mass
hexachlorophene, used in germicidal soaps, which consists of
38.37% C, 1.49% H, 52.28% Cl, and 7.86% O by mass.
The element X forms the compound XOCl2containing...