0.10g ofSample of an alcohol known to contain only C, H,and O was allowed to completely rest with oxygen to produce CO2and H2O these Products where collected seperatly and weighed 0:191g of CO2 and 0 172g of H20 was found what is the Empirical
Formula of the alcohol?

Calculate the enthalpy of the following reaction: 4 b (s) + 3 o2 (g) → 2 b2o3 (s) given the following pertinent information: (a) b2o3 (s) + 3 h2o (g) → 3 o2 (g) + b2h6 (g), δhoa = +2035 kj (b) 2 b (s) + 3 h2 (g) → b2h6 (g), δhob = +36 kj (c) h2 (g) + latex: \frac{1}{2} 1 2 o2 (g) → h2o (l), δhoc = −285 kj (d) h2o (l) → h2o (g), δhod = +44 kj

What mass of natural gas (ch4) must you burn to emit 276 kj of heat?

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