Solving for mass of a solute given ppm and volume?

[CamD13]

The question is: A solution contains 23ppm of dissolved O2 in 242.0066 mL of solution. What is the mass of the oxygen.

Formula: ppm=(grams of solute/grams of solution)*1,000,000

I tried plugging stuff in but it wasn't working out what so ever.

I just don't know how to do these when given so little information. Thanks in advance if you can help.

 

[CamD13]

The solution is NOT water.

 

[Borek]

Formula calls for the mass of the solution. You are give volume. You either have enough information to do the conversion, or not - hard to say not knowing the context.