When 5.62 g of methane combusts in a calorimeter, the 25. g of water in the calorimeter goes from 25oC to 28oC. What is the heat of combustion (in kJ/mol) for methane

8) a mixture of he, ne and ar has a pressure of 7.85 atm. if the ne has a mole fraction of 0.47 and 8) ar has a mole fraction of 0.23, what is the pressure of he? a) 4.2 atm b) 3.7 atm c) 5.5 atm d) 2.4 atm e) 1.8 atm

How many moles of oxygen gas are produced from the decomposition of six moles of potassium

Water undergoes a large change in density at 0 ∘ c as it freezes to form ice. calculate the percent change in density that occurs when liquid water freezes to ice at 0 ∘ c given that