Question

8. When glucose reacts with oxygen in living systems, carbon dioxide and water are produced, and a great deal of energy is liberated. C6H12O6(s) + 6 O2(g)  6 CO2(g) + 6 H2O(g) What weight of carbon dioxide can be produced from the reaction of 10.0 grams of glucose with 10.0 grams of oxygen? (a) 2.29 g (b) 2.44 g (c) 13.8 g (d) 14.7 g (e) none of these

9.Based on the balanced chemical equation shown below, determine the molarity of a solution containing Fe2+(aq), if 40.00 mL of the Fe2+(aq) solution is required to completely react with 30.00 mL of a 0.250 M potassium bromate, KBrO3(aq), solution.

The chemical equation for the reaction is 6 Fe2+(aq) + BrO3-(aq) + 6 H+(aq) → 6 Fe3+(aq) + Br-(aq) + 3 H2O(l). (a) 0.0312 M (b) 0.188 M (c) 1.12 M (d) 2.00 M

Answer 1

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6 FeTBTo+ 6Ht 6Fet3 Br+ 3H20 Fef2 Imore Bro yesuired, Vole ot Fet2 4o-004 Vo e 30.0oi 4o.00 L 6.04L et Motaiy ot Fet be: X M.

mole ct Fef2 mde c B103 neeaed X (o o4) wole ot fetl BTo meeded xCo.o4 O o3XO 2s0 C neotmete: udanty x (o 04) O O075 -1125 Molanity Fet2 - I^5M oPim Correct