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1. Identify the following of the element Sulfur (S)
- electronegativity
- number of valence electrons
- number of bonding electrons
- number of lone pairs of electrons
2. Identify the following of the element Argon (Ar)
3. What element has an electronegativity 4.0? Identify the following as well;
- group number
- number of lone pairs of electrons.
Please draw the resonance forms of o-nitrophenol and p-nitrophenol. The goal is to later on assign priorities to carbons of the molecules in order to correctly draw a 13C NMR spectra for each molecule.
Estimate the temperature above which this reaction is spontaneous. DS0 = 16.1 J/K. CH4(g) + N2(g) + 163.8 kJ ® HCN(g) + NH3(g)
How does one make 3-bromopropanol from propanol. What are the reagents needed for this reaction
Silicon has a FCC structure with unit cell edge of 5.43A and 4 atoms per init cell. a) how many silicon atoms are there in 1cm3 of material b) suppose you dope that 1 cm3 sample of silicon with 1ppm of phosphorus that will increase the conductivit..
What is unusual about these ratios? Would you expect this to be an effective buffer system at pH 7.4? Explain.
Calculate the molality of a 20.0 per cent by weight aqueous solution of NH4Cl. (Molecular weight: NH4Cl = 53.5) (b) If this NH4Cl solution is assumed to be ideal and is completely dissociated into ions, calculate the vapor pressure of this solutio..
The concentration of SO4 is .5 M in a certain solution of Al2(SO4)3. what is the molar concentration of Al in the solution
The concentrations of Al and K in a sample of river water are 0.50 mg/kg and 1.3 mg/kg, respectively. Express the concentration in molality
Determine the sign of ΔS sys and ΔS surr for each chemical reaction.2CO(g)+O 2 (g)?2CO 2 (g)ΔH ° rxn = -566.0 kJ. Choose from:
Explain why using a catalyst that provides a faster surface reaction rate will not increase the rate of the process of diffusion with a heterogeneous chemical reaction?
Which of the following is always true for a spontaneous process at constant temperature? A) Delta S system + Delta S surroundings = q/T B) Delta
Water contained in a piston-cylinder assembly undergoes two process in series from an initial state where the pressure is 10 bar and the temperature is 40°C. at first, the water is cooled as it is compressed at a constant volume to 150°C.
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