Season (N): Season (S):
TIÓ
Season (N):
Season (S):
SUN
Season (NY
Season (S)
Season (N)
Season (S):
:: Winter
Winter
:: Summer
* Summer
Spring
:: Spring
:: Fall/Autumn
:: Fall/Autumn

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

What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?

Choose all the answers that apply. fluorine (f) has an atomic number of 9 and an atomic weight of 18.99. fluorine has a. 9 protons b. 10 neutrons c. 18 electrons d. an atomic mass of 19 e. at least one isotope