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Question- Detailed calculations show that the value of Zeff for the outermost electrons in Si and Cl atoms is 4.29+ and 6.12+, respectively.1) Predict Zeff for a valence electron in P, phosphorus, based on the calculations for Si and Cl.
State your answer by means of three significant figures.
A certain reaction has an activation energy of 57.42 kJ/mol. At what kelvin temperature will the reaction proceed 3.50 times faster than it did at 353 K
What is the molarity of a solution in which 4.00 moles of potassium chloride is dissolved in 3.00l of solution
What are the possible values of n and ml (the principal and angular momentum quantum numbers) for an electron in a 5d orbital
If the pH of a 1.00 in. rainfall over 1800 miles2 is 3.20, how many kilograms of sulfuric acid, H2SO4, are present, assuming that it is the only acid contributing to the pH
a mixture of sodium chloride ammonium chloride and silicon dioxide are first extracted with water and then the extract
A helium-filled balloon has a volume of 2.75 L at 17 C. The volume of the balloon decreases to 2.36 L after it is placed outside on a cold day. What is the outside temperature in K?
Explain how elements combine to form a covalent bond and how each element involved fulfills the octet rule.
what is the pH of a solution made by adding 5.42grams of potassium nitrite, to 727mL of .178 M nitrous acid(assume no change in volume takes place) and what is the pH of the solution after adding 49 mL of .100 M NaOH
Briefly explain why you would expect benzoic acid to be soluble in the two solvents water and dicloromethane
A meteorological ballon contains 250.0L He at 22 degrees celsius and 740.0mm Hg. If the volume of the ballon can vary according to external conditions
The final temperature of the calorimeter is 24.4 °C. What is the specific heat capacity of the unknown metal. The specific heat capacity of water is 4.184 J/g-1 °C-1.
Standards added to tap water contained 0.160 ng/mL (ppb) of Eu(III), but those added to pond water were 100 times more concentrated. (a) From the x intercepts in the graph, calculate the concentration of Eu(III) (ng/mL) in tap water.
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