The heat of solution for NaOH is -445.1kJ/mol. In an experiment, 5.00g of NaOH is completely dissolved in 1,000g of 20.0°C water in a foam cup calorimeter. Calculate
the final temperature of the water. (Cwater = 4.18 J/gx°C and NaOH is 40.0g/mol) plz show work

when [oh-] is 10-5  m, and [h3o+] is 10-9  m, the poh is 5 and ph is 9. again in both cases the sum of ph and poh is 14. however, the hydrogen ion concentration is not always going to be equal to exactly 1 x 10 raised to a negative number. for example, we skipped over the value of 2.0 x 10-7.

acid rain does not usually kill trees directly. instead, it is more likely to weaken the trees by damaging their leaves, limiting the nutrients available to them, or poisoning them with toxic substances slowly released from the soil. the main atmospheric pollutants that affect trees are nitrates and sulphates.

they vary. it used to be meat, grain, bread, candy, beverages, donuts, and fruits/vegetables. now they added exercise in.