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Chemistry, 23.08.2019 22:30 iamsecond235p318rq
Mohr's salt is a pale green crystalline solid which is soluble in water. it is a 'double sulfate' which contains two cations, one of which is fe2+.the identity of the second cation was determined by heating solid mohr's salt with solid sodium hydroxide and a colourless gas was evolved. the gas readily dissolved in watdr giving an alkaline solution. a grey green solid residue was also formed which wasd insoluble in water. whate are the identities of the gas and solid residue? a. gas: h2 residue: feso4 b. nh3 na2so4 c. nh3 fe(oh)2 d. so2 fe(oh)2
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Using this reversible reaction, answer the questions below: n2o4 2no2 (colorless) (reddish-brown) -as the temperature increased, what happened to the n2o4 concentration? -was the formation of reactants or products favored by the addition of heat? -which reaction is exothermic? right to left or left to right? -if the change of enthalpy of this reaction when proceeding left to right is 14 kcal, which chemical equation is correct? n2o4 2no2 + 14 kcal n2o4 2no2, hr = +14 kcal n2o4 + 14 kcal 2no2 n2o4 2no2, hr = -14 kcal
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Mohr's salt is a pale green crystalline solid which is soluble in water. it is a 'double sulfate' wh...
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