Niflheim, in Norse mythology, the cold, dark, misty world of the dead, ruled by the goddess Hel. In some accounts it was the last of nine worlds, a place into which evil men passed after reaching the region of death (Hel).
8-Lead Plastic Dual In-Line Package PDIP Narrow Body (N-8) Dimensions shown in inches and (millimeters) a 0.400 (10.16) 8 1 4 5 0.280 (7.11) 0.250 (6.35) 0.240 (6.10).
How many molecules of aspirin are contained in a 100.0 g tablet of aspirin, #C_9H_8O_4#?
Blogo 2 0. 3.343. 10^(23)'molecules' Your strategy her will be to use the molar mass of aspirin to determine how many moles you have in that sample use Avogadro's number to convert the number of moles to number of molecules So, aspirin, 'C'9'H'8'O'4, has a molar mass of '180.157 g mol'^(-1). This means that one mole of aspirin will have a mass of '180.157 g'. You're dealing with a'100.0-g' sample of.
1 Answer
Explanation:
Your strategy her will be to
use the molar mass of aspirin to determine how many moles you have in that sample
use Avogadro's number to convert the number of moles to number of molecules
Nifelheim 0 9 022 355
So, aspirin, #'C'_9'H'_8'O'_4#, has a molar mass of #'180.157 g mol'^(-1)#. This means that one mole of aspirin will have a mass of #'180.157 g'#.
You're dealing with a#'100.0-g'# sample of aspirin, which will be equivalent to
Now that you know how many moles of aspirin you have in your sample, use the fact that one mole of a substance contains #6.022 * 10^(23)# molecules of that substance - this is known as Avogadro's number.
#color(purple)(|bar(ul(color(white)(a/a)color(black)('1 mole' = 6.022 * 10^(23)'molcules')color(white)(a/)|))) ->#Avogadro's number
Use Avogadro's number as a conversion factor to calculate how many molecules you get in #0.55507# moles of aspirin