Elemental sulfur is one of the products of the gas-phase reaction of nitric acid and hydrogen sulfide. The other
products are nitrogen monoxide(g) and water(g). A
container and hydrogen sulfide (s) are massed and found to
be 23.3 g. To this container 8.50 L of nitric acid gas was
introduced. After the reaction the solid was extracted and
found to weigh 16.8 g. (mass of container is 5.10g )
Based on this result find:
a. the percent yield of the solid product
b. the amount of the other products produced
c. the name of the solid produced
1 How much hydrogen sulfide is used in this experiment?

Astudent is given a sample of a blue copper sulfate hydrate. he weighs the sample in a dry covered porcelain crucible and got a mass of 23.875 g for the crucible, lid, and sample. the mass of the empty crucible and lid was found earlier to be 22.652 g. he then heats the crucible to expel the water of hydration, keeping the crucible at red heat for 10 minutes with the lid slightly ajar. on colling, he finds the mass of crucible, lid, and contents to be 23.403 g. the sample was changed in the process to very light clue anhydrous cuso4. if there are again 100.0 g of hydrate, how many grams of cuso4 are in it? how many moles of cuso4? (hint: molar mass of cuso4 = 159.6 g / mole. what per cent of the hydrate is cuso4? you may convert the mass of cuso4 to moles.)

Which of the following units is not an official si unit? mole liter kilogram ampere

Select all that apply. using a value of ksp = 1.8 x 10-2 for the reaction pbcl2 (s) pb+2(aq) + 2cl -(aq). the concentration of the products yield a ksp of 2.1 x 10-2: