a 25cm3 sample taken from a stock solution of ammonia was mixed with 25 cm3 of a solution containing excess hydrochloric acid the temp rise was 0.7 dc
1) calculate the number of ammonia moles which have reacted i got
2) calculate the concentration of the original stock solution
this is the 1 i need help on
i understand i would divide amount of moles by the volume (0.025 dm3) but were do i get the amount of moles from if its the original solution
dont understand this question Watch
- Thread Starter
- 22-12-2010 16:19
- 22-12-2010 17:43
How did you get the first answer? There must be more in the question for that part.
- 22-12-2010 19:04
if they've given you a dT, have they given you a dH for the reaction as well? That would allow you to work E=mcdT then dH=E/no moles and work out how many moles of ammonia reacted. This would then be divisible by 0.025 to give the concentration.