Chem 110 Equations Constants conversions and equations available during exams Constants Conversions 1J 1kg m2 s 2 1cal 4 184 J 1atm 760 mm Hg 760 torr 1atm 1 01325 105 Pa 1atm 101 325 kPa 1D 3 33 10 30 C m VSTP 22 41L mol 1 c 3 00 108 m s 1 h 6 63 10 34 J s Ry hcRH 2 18 10 18 J RH 1 097 107 m 1 NA 6 022 1023 mol 1 e 1 60 10 19 C me 9 109 10 28 g Equations k 8 99 109 N m2 C 2 R 0 08206 L atm mol 1 K 1 R 1 987 cal mol 1 K 1 R 8 314 J mol 1 K 1 d PM RT Pi X iPtot u 3RT M r1 M2 r2 M1 m H o f reac tants m BDE of bonds formed Qr q m Cs T q n Htrans Cg kPg f products n BDE of bonds broken 1 nf 2 E h kQ1Q2 mv 2 d 1 2 E Ek E Ry 1 2 ni c H o rxn H o rxn n H o Solubility Guidelines ammonium NH4 alkali metals Li Na K Rb Cs nitrates NO3 acetates CH3COO perchlorates ClO4 halides Cl Br I sulfates SO4 sulfides S2 and hydroxides HO carbonates CO3 2 2 and phosphates PO4 3 soluble insoluble Exceptions none 2 Pb2 2 Pb2 Ag Hg2 Ca2 Sr2 Ba2 Ag Hg2 NH4 NH4 Li Na K Rb Cs Ca2 Sr2 Ba2 Li Na K Rb Cs
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