Find the molality of a solution of 58.5 g NaCl dissolved in 0.556 kg of water

What is the effect of returning nuclear reactor cooling water back into bodies of water?

What is the average rate of the reaction between 10 and 20 s?

At a certain temperature the rate of this reaction is first order in hi with a rate constant of : 0.0632s2hig=h2g+i2g suppose a vessel contains hi at a concentration of 1.28m . calculate how long it takes for the concentration of hi to decrease to 17.0% of its initial value. you may assume no other reaction is important. round your answer to 2 significant digits.