Question

what is the concentration in ppm selenium if 1.3 mg is found in 2500 kg of soil​

Answer 1

Answer:

0.52

Explanation:

1.3 x 10^-3/2500×10^6 = 0.52

Answer 2

Answer:

0.00052

Explanation:

mass of solute=1.3mg/0.0000013kg or 1.3×10^-6kg

mass of solution = 2500kg .

we know , ppm =

(mass of solute/mass of solution)×10⁶

= (0.0000013/2500) × 10⁶

= 0.00000000052 × 10⁶

= 0.00052

hope it helped

thanks !!