An old sodium thiosulphate (na2s2o3, 158.2 g/mol) solution is labelled 0.241 m. to verify this, during a redox titration of 0.141 l of this solution, 43.22 ml of 0.264 m iodine solution were needed to reach the equivalence point. what is the percentage of sodium thiosulphate found with respect to that labelled?

18. use the activity series to predict whether the following synthesis reaction will occur. write the chemical equations for the reaction if it's predicted to occur. (s) + o2(g) -> *note: it is possible.*

Fugu, also known as puffer fish, is a sushi delicacy that can also be lethal. puffer fish contain a powerful toxin that can kill an adult a few hours after ingestion. sushi chefs who prepare fugu must be specially trained because any contamination of the toxin-free areas of the fish can be deadly. recently this toxin has been put to good use, as scientists have discovered that a purified form of it can treat severe pain in cancer patients. this recent scientific discovery would fall under which area of chemistry? applied biochemistry pure organic chemistry pure physical chemistry applied inorganic chemistry

The nuclear fission process releases neutrons and question 27 options: alpha particles electrons energy beta particles