Respuesta :

Willchemistry
hey there:

1 cm³ = 1 mL

D = m  / V

7.25 = 12.9 / V

V = 12.9 / 7.25

V = 1.779 cm³
laurahai

Answer:

1.78 mL

Explanation:

The formula for density is mass divided by volume: D = m/V

Rearranging for volume, the formula becomes:

V = m/D = (12.9 g)/(7.25g/cm³) = 1.78 cm³ = 1.78 mL

(The conversion ratio between cm³ and mL is 1:1)