Actual yield in grams of oxygen
In the decomposition of hydrogen peroxide, the percentage yield of oxygen is 93%. What is the actual yield in grams of oxygen if you start with 100 grams of H2O2? The reaction proceeds according to the equation 2H2O2(l)=2H2o(l)+O2(g).
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A pitchere containing 0.75L of water at 4C. is removed from the refrigerator. How may kilojoules are needed to warm the water to a room temperature of 27C.
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Wheel of radius r is driven by an arm OA. It is driving (without slip) wheel of a radius r2 which is fixed to a drum of radius r1. Load G is attached to the rope which winds on the drum.
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