The eruption of Mount St. Helens on May 18, 1980, provided geologists with a unique opportunity to study the
action of volcanos. Gas samples from the plume were
collected and analyzed for toxic heavy metals. To collect
mercury, Hg, gas samples were passed over a piece of gold
metal, which binds Hg atoms very tightly. The mass of the
metal increased as it absorbed Hg from the plume. From a
plume gas sample containing 200.0 g of ash, 3.60 ug Hg
was deposited on the gold. If 35 metric tons of ash were
deposited per acre in the Yakima Valley, determine how
much Hg the volcano deposited on every acre in grams,
moles, and number of atoms. (Recall that
1 metric ton = 1000 kg).

Do u have the n? or maybe the m?

answer: mole of the gas

answer: mole of the gasexplanation:

answer: mole of the gasexplanation: this is because 1 mole of a gas is 22.4dm³, which is use in ideal gas

Answerthis solution will not form a precipitateexplanationsolubility equilbrium:         pbf₂(s)  ⇄ pb²⁺(aq) + 2 f⁻(aq)the solubility product expression is    (we exclude solids from the equilibrium expression).now suppose we have the trial ion product q, which we can define as    then, we can interpret  q as the product of the concentration of the ions that we have and ksp as the product of the ion concentrations that are needed to form a saturated solution.if q > ksp, then that implies that there will be a surplus of ions that exceed the amount that is required to form a saturated solution. a precipitate will then form (the precipitate continually  forms until the surplus ions are removed and q is decreased to ksp's value).if q = ksp, the saturated solution that forms is barely saturated and the precipitate will be minimal.if q < ksp, then the ion concentration will not be enough to form a saturated solution (so no precipitate).using our information, we calculate the trial ion product:     since q = 2.7  × 10⁻⁸ < ksp =  4  ×  10⁻⁸, a precipitate will not form.