A1 L sample from Tempe Town lake has a pH of 3.57. Exhaust from cars on nearby highways often mixes with rain to form HNO3. use this information to answer the following questions.
1. what is the concentration of H+ ions in the sample?
2.if it took 80 ml of 1 M NaOH to neutralize 250 ml of the acidic solution, what is the
molarity of HNO3 in the sample?
3. How many moles of HNO3 are in the
solution?

When 13.3 g koh is dissolved in 102.7 g of water in a coffee-cup calorimeter, the temperature rises from 21.4 °c to 31.53 °c. what is the enthalpy change per gram of koh (j/g) dissolved in the water? * take the density of water as 1.00 g/ml. * assume that the solution has a specific heat capacity of 4.18 j/g*k. enter to 1 decimal place. do not forget the appropriate sign /(+). canvas may auto-delete the (+) sign