an atomic weight of 26.982, and a density of 2.70. It has a melting temperature of 660 C. The electronic configuration of Aluminum is (Ne)(3s) 2 (3p) 1, and it has an atomic radius of 0.143 nm. At ...

Atomic structure Atoms are made from protons ... Chemical formulae The chemical formula for a substance shows how many atoms of each element are present in a molecule, or the proportion of ...

if you know the relative mass formula (M r) of the compound. Add up the atomic masses of the atoms in the empirical formula. The empirical formula of a hydrocarbon is CH 2 and its M r is 42.

1. Convert kilograms/second to grams per second. 1 kg = 1000 grams. If the mass flowrate is 0.25 kilograms/second, convert this to 250 grams/second. 2. Convert grams to moles, using the molar mass of ...