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Dimethyl ether, a useful organic solvent, is prepared in two steps. In the first step, carbon dioxide and hydrogen react to form methanol and water:
CO2(g) + 3H2(g) = 3H3OH(l) + H20(l) Change in H = -131. kJ
In the second step, methanol reacts to form dimethyl ether and water:
2CH30H(l) = CH3OCH3(g) + H2O(l) Change in H = 8. kJ
Calculate the net change in enthalpy for the formation of one mole of dimethyl ether from carbon dioxide and hydrogen.Round your answer to the nearest kJ.
starting with an aqueous solution of 115 ml of 0.35 m pyridine kb 1.7 x 10-9 determine the observed ph of the solution
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