A mystery compound is made of 35.51% carbon, 4.77 % hydrogen, 37.85% oxygen 8.39% nitrogen and 13.60% sodium a) What is its empirical formula? Show your work. (b) The molar mass of the compound is 169g / mol What is the molecular formula of the compound? Show your work .

Suppose a pair of chemical compounds a and b can react in two different ways: a + b -> c reaction 1 gives product c. a + b -> d reaction 2 gives product d. the following facts are known about the two reactions: . reaction 1 is endothermic and reaction 2 is exothermic. if a reaction vessel is charged (filled) with a and b , then at first d is produced faster than c. use these facts to sketch a qualitative reaction energy diagram for both reactions. note: because these sketches are only qualitative, the energies don? t have to be exact. they only have to have the right relationship to each other. for example, if one energy is less than another, that fact should be clear in your sketch.