A standard experiment involves passing a current of several amperes through a copper sulfate solution (CuSO4) for a period of time and determining the mass of copper plated onto the cathode. It is found that a current of 1.00 A flowing for 3600 s deposits 1.185 g of copper. Determine: (a) the number of copper atoms deposited, (b) the weight of a copper atom, and (c) the molar mass of copper.

The table lists the lattice energies of some compounds.compoundlattice energy (kj/mol)lif            –1,036licl            –853naf            –923kf            –821nacl            –786which statement about crystal lattice energy is  best  supported by the information in the table? the lattice energy increases as cations get smaller, as shown by lif and kf.the lattice energy increases as the cations get larger, as shown by lif and licl.the lattice energy decreases as cations get smaller, as shown by nacl and naf.the lattice energy decreases as the cations get smaller, as shown by naf and kf.