In the following pairs, which substance has the lower boiling point? (a) LiCl HCl (b) PH3 NH3 (c) Xe I2
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In the following pairs, which substance has the lower boiling point?
(a)
LiCl
HCl
(b)
PH3
NH3
(c)
Xe
I2
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- The aquation of tris(1,10-phenanthroline)iron(II) in acid solution takes place according to the following chemical equation: Fe(phen)32++ 3 H3O++ 3 H20 → Fe(H2O)62+ + 3 phenH+ If the activation energy, Ea, is 126 kJ/mol and the rate constant at 30°C is 9.8 x 10-3 min-1, what is the rate constant at 45°C? O 1.1 x 103 min-1 O 1.1 x 10-1 min-1 9.3 x 10-4 min-1 9.6 x 100 min-1Which substance's solubility decreases with an increase in temperature? 100 90 NANO 80 70 60 CaCl, 50 Pb(NO,)2 40 KC NaCl 30 20 KCIO, 10 Ce,(SO)3 10 20 30 40 50 60 70 80 90 100 Temperature (°C) Solubility (g of salt in 100 g H,O) SONYHow many grams of N2 are needed to produce 2.17 mol of NH3 when reacted accordinng to this chemical equation? N2(g) +3H2(g)=NH3(g)
- This is a chemical reaction for the decomposition of carbonic acid into water and carbon dioxide. H2CO3 → H2O + CO2 How does the reaction support the Law of Conservation of Mass?If an electron is removed from each molecule, it is observed that N2+ has a weaker bond than N2, but O2+ has a stronger bond than O2. Explain why electron removal has a different effect on these two molecules.The electron affinity of Cl is 3.61 eV whereas the ionization energy of K is 4.34 eV. How far apart must two molecules be for the KC1 molecule to accumulate enough Coulomb energy to outpace the energy required to create the K+ and (I-) ions?