please show your work i really need help with these two and im trrying , but keep getting the wrong answer! please show work. thank you
1. Magnesium metal (0.100 mol) and a volume of aqueous hydrochloric acid that contains 0.500 mol of HCl are combined and react to completion. How many liters of hydrogen gas, measured at STP, can be produced?
Mg(s) + 2HCl(aq) => MgCl2(aq) + H2(g)
2. Methanol (CH3OH) can be used as a fuel. Given the equation below, how much heat is released when 30.0 g of methanol is burned in excess oxygen at 1 atm?
2CH3OH(g) + 3O2(g) => 2CO2 (g) + 4H2O(l) ΔHorxn = -152.4 kJ
1. Magnesium metal (0.100 mol) and a volume of aqueous hydrochloric acid that contains 0.500 mol of HCl are combined and react to completion. How many liters of hydrogen gas, measured at STP, can be produced?
Mg(s) + 2HCl(aq) => MgCl2(aq) + H2(g)
2. Methanol (CH3OH) can be used as a fuel. Given the equation below, how much heat is released when 30.0 g of methanol is burned in excess oxygen at 1 atm?
2CH3OH(g) + 3O2(g) => 2CO2 (g) + 4H2O(l) ΔHorxn = -152.4 kJ