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Explain which comparison of atomic and/or ionic radii is correct? Depict the electron shells/Zeff comparison for all answer choices as your work. Define EACH zeff comparison followed by the electron shell.a) K+ > Kb. K+ > Ca^2+c) Si > Sd) Kr > Xee) Cl > Cl-
18.6 grams of a solute with molecular mass of 8940 grams are dissolved in enough water to make 1.00 dm? of solution at 25 àC. What is the osmotic pressure of the solution?
what is the purpose of ethylene glycol in this chemical experiment. why is it chosen specifically for this reaction.
In May 1990 the French TGV train traveled the distance from Paris to Lille, France (127 miles) in .819 hours. What was the speed of the TGV in m/s?
When 25.0 mL of unknown was passed through a jones reductor, molybdate ion (MoO4^2-) was converted to Mo^3+. The filtrate required 16.43 mL of .01033 M KMnO4 to reach purple end point
A sample of nitrogen gas in a 4.6-L container at a temperature of 30.°C exerts a pressure of 3.9 atm. Calculate the number of moles of gas in the sample.
The partial pressure of O2 in a sample of air on a mountain top is 115 mmHg. The oxygen makes up 21% of the gas in the atmosphere. What is the total atmospheric pressure on the mountain top?
The standard molar heat of vaporization for water is 40.79 kJ/mol. How much energy would be required to vaporize 29.0 g of water?Answer in units of kJ.
You must use realistic concentrations for full credit. If you cannot produce a cell with a 9V potential provide the calculations and cell that gives you a value closest to the 9 V value.
When a 3.25g sample of solid sodium hydroxide was dissolved in a calorimeter in 100.0 g of water, the temperature rose from 23.9 C to 32.0 C. Calculate deltaH (in kJ/mol NaOH) for the solution process:
Electron affinity can be defined for molecules just as it is defined for single atoms. Write a complete chemical equation representing the electron affinity of OH. Include all relevant state symbols.
How is the number of unpaired valence electrons in an atom related to the number of bonds that the atom can form
The molar mass of a compound is 360. If the empirical formula is NO, what is the molecular formula
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