19. an exchange student to the planet zook visits a chemistry class. a number of students are conscientiously working
on a project. as he watches their progress he overhears a request for 18 zooms of a material that is obviously
platinum. the visitor wonders what the equivalent weight would be in grams, so he pulls out a book of conversion
factors and finds the following:
a. 9 woofs= 1 gram
b. 2 zings = 7 warps
c. 8 woofs = 3 warps
d. 4 zooms = 3 zings

a) what mass (in grams) was asked for? (you must use dimensional analysis, assume the whole numbers do not count
towards sig figs - they are exact)
b.) at $700.00 dollars per ounce, what would it have cost on earth? (1 g = 0.03527 oz)