Calculate the mass of water produced when 5.04 g of butane reacts with excess oxygen. Calculate the mass of butane needed to produce 75.3g of carbon dioxide

Express your answers to three significant figures and include the appropriate units.

Does the energy in a solid increase or decrease when changing to a liquid?

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Phosphorous acid, h3po3(aq) , is a diprotic oxyacid that is an important compound in industry and agriculture. p k a1 p k a2 1.30 6.70 calculate the ph for each of the points in the titration of 50.0 ml of 1.5 m h3po3(aq) 1.5 m h 3 po 3 ( aq ) with 1.5 m koh(aq). 1.5 m koh ( aq ) .