Question

What is the concentration of H2(g), in parts per million, in a solution that contains 0.0001 g of H2(g) dissolved in 100. g of H2O(l)?

Can someone tell me why 1 ppm is the right answer?

Answer 1

The concentration of H2(g) in the solution is 1 ppm. Hence, In this case, we have 0.0001 g of H2(g) dissolved in 100 g of H2O(l).

Step-by-step explanation:

The concentration of H2(g) in parts per million (ppm) can be calculated by dividing the mass of H2(g) by the mass of the solution and multiplying it by 1,000,000.

In this case, we have 0.0001 g of H2(g) dissolved in 100 g of H2O(l).

So the concentration of H2(g) is:
(0.0001 g H2) / (100 g H2O) x 1,000,000 = 1 ppm

Therefore, the concentration of H2(g) in the solution is 1 ppm.