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Use the periodic table to determine the element corresponding to each of the following electron configurations.
Part1: [Ar]4s^2
Part2: [Kr]5s^24d^105p^1
For example: [Kr]5s^1=Rb
write the chem equation for the reaction which occurs when solutions of potassium sulfide and iron (II) chloride are mixed.
For the reaction CO+O2 -> CO2 , what is the maximum amount of CO2 (44.0095 g/mol) which could be formed from 16.73 g of CO (28.0101 g/mol) and 0.251 mol of O2 (31.9988 g/mol)? Answer in units of mol
An equilibrium mixture of SO2,O2 and SO3 gases at 1500k is determined to consist of 0.244 mol/L SO2, 0.172 mol/L O2 and 0.56 mol/L SO3.
A researcher conducts an experiment to determine the work function of a palladium surface. She fires a laser with a wavelength of 254 nm at a certain time and observes electrons hitting a detector
Assume that the kinetic energy of a 1500kg car moving at 95 km/h can be converted entirely into heat. What amount of water could be heated from 20 C to 50 C by the car's energy?
Recommend an explanation why the cyclic intermediate might have two important groups in a trans relationship that could factor the E-alkene.
A liquid has a H vaporization of 35.5kJ/mol and a boiling point 0f 122 degrees celcius at 1.00 atm.What is its vapour pressure at 109 degrees celcius.
What is the molarity of a solution of calcium hydroxide, Ca(OH)2, if 339 mL is neutralized with 41.51 mL of a 0.304 M HCl?
certain temperature and pressure, one liter of CO2 gas weighs 1.85 g. What is the mass of one liter of CH4 gas at the same temperature and pressure?
The titration curve of a 1.00 M unknown acid solution shows that the pH at the equivalence point is 9.16 and the pH halfway to the equivalence
Use the systematic treatment of equilibrium to determine the pH and concentrations of species in 1.00 L of solution contatining 0.070 lysine HL 0.055 mol aspartic acid H2A and 0.0080 mol NaOH. Consider just acid base chemistry. Ignore ion pairing ..
Use the Henderson and Hasselbalch equation to calculate the pH of a buffer solution that is 0.45 M in NH4Cl and 0.15 M in NH3
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