Practice cinis 38. A balloon contains 2.0 L of helium gas at STP. How many moles
helium are present?
39. How many moles of gas are present in 11.2 L at STP? How man
molecules?
10. What is the volume, at STP, of 3.45 mol of argon gas?
1. At STP, a container holds 14.01 g of nitrogen gas, 16.00 g of oxy
gas, 66.00 g of carbon dioxide gas, and 17.04 g of ammonia gas
is the volume of the container?
2. (a) What volume do 2.50 mol of oxygen occupy at STP?
(b) How many molecules are present in this volume of oxygen
Icl How many nxygen atoms are present in this volume of oxy​

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

Consider the directing effects of the substituents on salicylamide and predict the possible structures of the iodination products. which do you think will be the major product?

List the path of the respiratory system