Magnesium hydroxide is 54.87% oxygen by
mass. How much oxygen is in 260 g of the
compound?
Answer in units of g
(part 2)
How many moles of oxygen is this?
Answer in units of mol
Estimate the amount of heat released (in kj/mol) when 10g of CH4 gas reacts with an excess of O2 gas to form gaseous CO2 and liquid water. The molar mass of CH4 is 16.042