Question

The acid in an automobile battery (a solution of sulfuric acid) has a density of 1.2 g/cm³. How many sulfuric acid particles are in 2.00 x 10² mL of this acid?​

Answer 1

Answer:

The answer to your question is: 1.48 x 10 ²⁴ particles of H₂SO₄

Explanation:

Data

density = 1.2 g/cm³

V = 2.00 x 10² ml

density = m / v

Then

                     mass = density x volume

                     mass = 1.2 x 200

                     mass = 240 g

MW H₂SO₄ = (1x2) +(32x1)+(16x4) = 98 gr

                   98 g of H₂SO₄ ------------------  1 mol

                 240 g                 ------------------     x

                       x = 240 x 1 / 98 = 2.45 mol

  Finally

                1 mol ------------------- 6.023 x 10²³ particles

              2.45 mol --------------    x

                 x = 2.45 x 6.023 x 10²³ / 1 = 1.48 x 10 ²⁴