A100.0g sample of lead is heated to 100.0 oc (celsius) and is placed in a coffee cup calorimeter containing 150. g of water at 25.0 oc. after the metal cools, the final temperature of the metal and the water is 26.4 oc. calculate the specific heat capacity of lead from these experimental data, assuming that no heat escapes to the surroundings or is transferred to the calorimeter. specific heat of water = 4.184 j/g oc atomic mass pb = 207.2 g/mol calculate your answer in j/g oc with 3 significant figures, but enter the answer without units.

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

Which element is the least metallic between cadmium, silver, zinc, or iron?

Asample of freon gas has a volume of 2.23 liters, a pressure of 4.85 kpa, and a temperature of -1.36°c. calculate the volume at a pressure of 1.38 kpa and a temperature of 5.5°c. (show work)