How much positive charge is in 0.7 kg of lithium? with each atom having 3 protons and 3 electrons. The elemental charge is 1.602 × 10−19 C and Avogadro’s number is 6.023 × 1023 . Answer in units of C.

Explanation:

As a neutral lithium atom contains 3 protons and its elemental charge is given as . Hence, we will calculate its number of moles as follows.

          Moles =

                     =

                     = 100 mol

According to mole concept, there are atoms present in 1 mole. So, in 100 mol we will calculate the number of atoms as follows.

        No. of atoms =

                               = atoms

Since, it is given that charge on 1 atom is as follows.

                    =

Therefore, charge present on atoms will be calculated as follows.

Thus, we can conclude that a positive charge of is in 0.7 kg of lithium.

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