Question

Calcula a cuántos moles equivale y cuántas moléculas contiene 12g de cloruro de berilio, BeCl2

Answer 1

M(BeCl₂) = 1(9,012)+2(35,453)= 79,918g

                        1 mol BeCl₂
12g BeCl₂ x----------------------- = 0,150 mol BeCl₂
                     79,918 g BeCl₂

                          6,022x10²³moléculasBeCl₂
0,150molBeCl₂x -----------------------------------=9,042x10²² moléculasBeCl₂
                                    1 mol BeCl₂