How many moles of potassium chloride, kcl, are needed to make 100.0 ml of a 2.0 m kcl solution?

              0.20 Moles

Solution:

Data Given:

                  Molarity  =  2.0 mol.L⁻¹

                  M.Mass  =  74.55 g.mol⁻¹

                  Volume  =  100 mL  =  0.1 L

Formula Use:

                            Molarity  =  Moles ÷ Volume

Solving for Moles,

                            Moles  =  Molarity × Volume

Putting values,

                            Moles  =  2.0 mol.L⁻¹ × 0.1 L

                            Moles =  0.20 mol

Preparation of 2 M KCl Solution:

                                      Take 0.2 moles of KCl and pour it into a 100 mL empty volumetric flask. After that add distilled water upto the mark of 100 mL. The concentration of resulting solution will be 2.0 M.

hi,

the answer is d, it has indefinite shape but definite volume.

hope this !

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