1) Suppose you find an irregular shaped rock in a riverbed that appears to be gold. To determine whether it is real gold or fool's gold (iron pyrite, whose luster resembles that of gold), you decide to perform Archimedes experiment.... First you weigh the sample and find that it weighs 2.44 g. Then you drop it in a volumetric flask containing water and note that 0.460 mL are displaced. Is it gold or fool's gold?? (the density of pure gold is 19.3 g/ cm^3, most fool's gold, which varies in composiion, has a density between 5-7 g/ cm^3.

So:::: A) gold, B)fool' gold, c) neither.

2) If a sample of water is contaminated with hydrogen sulfide at 22 ppm, by mass, how many moles of hydrogen sulfide are in 908400 grams in this sample??

( the 2 questions are completely independent of eachother)

thanks alot for your help