a) C 5 H 12 ( l ) O 2 ( g ) CO 2 ( g ) H 2 O( l ) If 28 6 grams of ...

a) C5H12(l) + O2(g) â†’ CO2(g) + H2O(l) If 28.6 grams of pentane (C5H12) are burned in excess oxygen,...

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Chemistry

a) C₅H₁₂(l) +O₂(g) â†’ CO₂(g) +H₂O(l)
If 28.6 grams of pentane (C₅H₁₂) areburned in excess oxygen, how many grams of H₂O will beproduced?
______g H₂O
b) If baking soda (sodiumhydrogen carbonate) is heated strongly, the following reactionoccurs:
2NaHCO₃(s) â†’ Na₂CO₃(s) +H₂O(g) + CO₂(g)
Calculate the mass of sodium carbonate that will remain if a1.28 g sample of sodium hydrogen carbonate is heated
_Â Â g Na₂CO₃
c) P₂O₅(s) + 3H₂O(l) â†’2H₃PO₄(aq)
Given an initial mass of 10.35 gP₂O₅, an excess ofH₂O (assuming that all of the reactantis converted to product(s), and none is lost), calculate the mass(g) of H₃PO₄ produced by thereaction.
g
d)
\"Smelling salts,\" which are used to revive someone who hasfainted, typically contain ammonium carbonate,(NH₄)₂CO₃. Ammonium carbonatedecomposes readily to form ammonia, carbon dioxide, and water. Thestrong odor of the ammonia usually restores consciousness in theperson who has fainted. The unbalanced equation is
(NH₄)₂CO₃(s) â†’NH₃(g) + CO₂(g) + H₂O(g)
Calculate the mass of ammonia gas that is produced if 1.30 g ofammonium carbonate decomposes completely.
g NH₃

Answer & Explanation Solved by verified expert

3.6 Ratings (534 Votes)

C5H12l 8 O2g 5CO2g 6H2Ol 1 mole of C5H12 combustion in presence of oxygen to gives 6 moles of H2O 72 gm of C5H12 combustion in presence of oxgen to gives 618gm of H2O 286 See Answer

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