1. Calculate the number of moles in each of the following masses: 0.039g of palladium = 3.665×10-4 moles 0.0073kg of tantalum 3.37 x 10-6 g of molybdenum = 3.513×10-8 moles 1.06 x 1023 atoms of tungsten 3.008 x 1019 atoms of silver = 4.997×10-5 moles 7.04g of Lead (II) Nitrate, Pb(NO3)2 Molar mass =331.2 g/mol […]
1. Which of the following sets of quantum numbers are allowed for an electron in an atom? n l ml ms 1) 2 1 0 +1/2 2) 3 0 +1 -1/2 3) 3 2 -2 -1/2 4) 1 1 0 +1/2 5) 2 1 0 0 a) 2, 4, 5 b) 2, […]
R= round Y= yellow seeds P = purple flowers T = tall G = green pods r = wrinkled y = green seeds p = white flowers t = short g = yellow pods 1. Show the cross and analyze the offspring from two homozygous parents, one of which is tall and one […]
The debate over immigration in America often takes the form of two equally persuasive but irreconcilable assertions. The economic impact of immigrants is one area in which such views are especially entrenched. Opponents of immigration argue that large numbers of new immigrants strain the economy by competing for scarce jobs and by draining social service […]