Calculate the number of moles of O atoms in 13.27 g Mn(NO3)2. Hi I did this question and it seemed pretty easy but there is this online assignment I am...
Re: Calculating number of ions « Reply #7 on: July 25, 2008, 10:04:17 AM » heyThe formula is wrong, should be Quote from: Astrokel on July 25, 2008, 09:44:55 AM hey,do you know about this formula?No. of particles or ions = no of moles x Avogadro's constantAvogadro's...
In summary, the density of aluminum is 2.699 g/cm3 and its atoms are arranged in a face-centered cubic crystal lattice. To find the mass of a unit cell, you multiply the density by the number of atoms in the cell. In fcc, all atoms lie on the cell walls, so they are only ...
Step 1- Determine thenumber of molesof each solution in order to be able to calculate the mole fraction of the components. From theperiodic table, the atomic masses of the carbon and hydrogen atoms in hexane and benzene are: C = 12 g/mol H = 1 g/mol Use the molecular weights to fin...