If 0.025 gram of Pb(NO3)2 is dissolved in 100. grams of H2O, what is the concentration of the resulting solution, in parts per million?
(1) 2.5 × 10–4 ppm (3) 250 ppm
(2) 2.5 ppm (4) 4.0 × 103 ppm

The ppm is denifite by how many parts of the solute is present in a one million parts of the solution. Remembring that the solute should be in "mg" and the solutions shoud be in "kg".

[tex]k= \frac{solute}{solution} \\ k= \frac{25}{0.1} \\ \boxed {k=250ppm}[/tex]

Number 3

If you notice any mistake in my english, please let me know, because i am not native.

Answer Link

If 0.025 gram of Pb(NO3)2 is dissolved in 100. grams of H2O, what is the concentration of the resulting solution, in parts per million? (1) 2.5 × 10–4 ppm (3) 250 ppm (2) 2.5 ppm (4) 4.0 × 103 ppm

Respuesta :

Otras preguntas

If 0.025 gram of Pb(NO3)2 is dissolved in 100. grams of H2O, what is the concentration of the resulting solution, in parts per million?
(1) 2.5 × 10–4 ppm (3) 250 ppm
(2) 2.5 ppm (4) 4.0 × 103 ppm