What is the decrease in volume of air when pyrogallol is shaken with 30.00cm\(^3\) of air ?

vickyf

9 years ago

u no in d test for photosynthesis alkaline pyragaloll is used to dry oxygen ...xo amount of oxygen in air is 21% xo wen it z shaken wit air it will absorve 21% of 30cm^3......

josephx360

8 months ago

they didn't give us percentage

EnehMmesoma

2 months ago

they are very correct
Air=oxygen.. 21%/100*30=6.30

Henry2#

10 years ago

they made a mistake, it is 30cm^3 not 20

splendour-c

11 years ago

hw cum!, wer is d 20 goten 4rm...dis is very strange

jimohmustapha

10 years ago

pls re do it

majik2013

11 years ago

strange answer

ummirabia

3 months ago

b is a rather strange answer

caphri12345

4 months ago

why will it be b