The NaOH solution was made from 142.1 g NaOH, dissolved in water, and diluted to 1000.0 +/- 0.6 mL What is the molarity of the NaOH solution prepared to react with the pennies?

What was the pH of the solution?

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

Use the periodic table to find the molar mass of each element. molar mass h = g/mol molar mass s = g/mol molar mass o = g/mol

What is the amount of energy for a photon that has a 125 cm wavelength