How many grams of sodium chloride must you add to 850g of water to make a solution with a molality of 2.35?

Which element would mostly likely have an electron affinity measuring closest to zero

Hey guys so i need to know what is _nh3+> nh4oh ~chemistry~

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