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From the subsequent partial valence-level orbital diagrams, State the condensed electron configurations and the respective group numbers.
(a) Electron configuration
(b) Electron configuration
What mass of sodium formate must be added to 400.0 mL of 1.00 M formic acid to produce a buffer solution that has a pH of 3.50
Given the reaction: Ca + 2H2O -> CA(OH)2 +H2 What is the total number of moles of Ca needed to react completely with 4.0 moles of H2O?
Estimate the heat of formation of water dHf(H2O)(g) from its elements, provided the following bond energies. Write the equation.
Consider the coordination compound, (CoCl(NH3)4(H20))SO4. Use the definition in the Introduction to identify the a) the ligands b) the complex c) the coordination sphere d) the coordination number of cobalt
A sample of neon gas is held in a rigid 1.814L container with a pressure of 1.273atm at 25 C. 3.193g of an unknown gas is added to the container. The temperature remains constant, but the pressure rises to 2.386atm. What is the molar mass of the a..
oxygen are mixed according to the equation 2 H2 + O2 = 2 H2O, which is the limiting reagent
A 33.0-g sample of an alloy at 93.0°C is placed into 258 g of water at 22.0°C in an insulated coffee cup. Assume that no heat is absorbed by the cup. If the final temperature of the system is 31.1°C
A student mixes 99.1g of water at 80.1C with 32.5g of water at 27.3C in an insulated flask. What is the final temperature of the combined water
what happens to the pressure inside a closed container if the number of moles inside the container is increased while
a 0.0355 g sample of an unknown molecular compound is dissolved in 1.000 g of liquid camphor at 200.0degc. upon cooling
when 56.6g of calcium and 30.5g of nitrogen gas underfo a reaction that has a 93.0% yield, what mass g of calcium nitride forms.
Determine how many grams of oxygen gas would be needed to combine exactly with 13.2 kg of propane (C3H8) gas (the 3 and the 8 are subscripts).
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