10.0 L cylinder contains 7.60 g of Ar(g) and 4.40 g of N2(g) at 25oC. Calculate the partial pressure of each gas and the total pressure in the cylinder.

Why do scientists look for patterns in the world? a. patterns can explain observations. b. patterns never change, no matter what. c. patterns are easy for scientists to detect. d. patterns are all the same, through all time.

Calculate the molarity of 48.0 ml of 6.00 m h2so4 diluted to 0.250 l .

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