An aspirin tablet contains 325.0 mg of aspirin, which has the molecular formula, c9h8o4. 4th attempt part 1 (1 point)see periodic table how many moles of aspirin are in the tablet? moles

The molar mass of aspirin is simply:

molar mass = 9 * 12 g/mol + 8 * 1 g/mol + 4 * 16 g/mol

molar mass = 180 g/mol

The number of moles is simply the ratio of mass and molar mass. therefore:

moles = 0.325 g / (180 g/mol)

moles = 1.81 x 10^-3 mol = 0.00181 mol

"among the transition metal elements, manganese and zinc have a slight lowering of electronegativities. the reason behind this is that the nuclear charges of these elements are slightly weaker than the other transition metal elements due to the way their valence electrons are filled up. both manganese and zinc have their valence electrons filled up to the 4th shell with 1 pair of electrons (4s2) completely occupying it. although the electrons in the 3rd shell (3d) are yet to be paired since the outer most shell is filled up, the ability of the nucleus to attract electrons is lessened. hence,   the electronegativity (or the ability to attract electrons) is lessened."