5) Solid sulfur and oxygen gas react to produce sulfur trioxide as shown below. In a particular experiment, 6.0 g of O2

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5 Solid Sulfur And Oxygen Gas React To Produce Sulfur Trioxide As Shown Below In A Particular Experiment 6 0 G Of O2 1 (44.06 KiB) Viewed 24 times

5) Solid sulfur and oxygen gas react to produce sulfur trioxide as shown below. In a particular experiment, 6.0 g of O2 (32 g/mol) are reacted with 6.0 g of S: (256 g/mol): S8 (s) + 12 O2(g) → SO3 (g) What is the mass of the reactant that still remains at the end of the reaction? (A) 3.33 g (B) 0.16 g (C) 2.67 g (D) 2.00 g 6) A hydrate of Na2CO3 (107 g/mol) has a mass of 6.36 g before heating. After heating, the mass of the anhydrous compound is found to be 3.22 g. Determine the formula of the hydrate? (A) Na2CO3.2H2O (B) Na2CO3 · 4H20 (C) Na2CO3.6H2O (D) Na2CO3. 12H20