1.1 Balance the following equations and name each reactant and product : a) NH3 (aq) + O2 (aq) - NO + H2O (l) b) Fe2O3 (s) + Mg (s) - MgO + Fe (s)
1.1 Balance the following equations and name each reactant and product :
a) NH3 (aq) + O2 (aq) - NO + H2O (l)
b) Fe2O3 (s) + Mg (s) - MgO + Fe (s)
1.2 Write a balanced equation for the ionization of nitric acid in water.
1.3 Styrene the building block of polystyrene , consists of only C and H. I f 0.438 g of styrene is burned in oxygen and produces 1.4801 g of CO2 and 0.303 g of H2O , what is the empirical formula of styrene?
1.4 A 0.015 M solution of hydrogen cyanate , HOCN, has a pH of 2.67
a) What is the hydronium ion concerntration in the solution?
b) What is the ionization constant , Ka for the acid?
1.5 Define each of the following :
a) Arrhenius acid
b) Lewis acid
1.6 What mass of HCI is required to react with 0.750 g Al (OH)3? What mass of water is produced?
Al(OH)3 (s) + 3HCI (aq) - AICI3 (aq) + 3H2O (I)
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