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.

the correct answer is b. a strong acid completely dissociates to its ions when dissolved in water. completely dissociates to and ions. a is incorrect because does not fully ionize to and ions and some remain as the compound . c and d are incorrect because, and do not fall into the category of bronsted lowry acids. a bronsted lowry acid is a proton donor and since both molecules do not have a proton to donate they are not bronsted lowry acids. likewise,   if we use the lewis acid definition, they cannot be acids. a lewis acid is an electron pair acceptor. both and have a complete octet so can not accept any electrons which disqualifies them as acids.