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A sample of hydrated Barium Chloride, BCl2 x H2O weighed 428.3mg before and 356.2mg after heating as BaCl2. What is the average number of water of hydration per molecules of BaCl2?(what is the X in BaCl2 X H20?
Predict the electron-domain geometry, the molecular geometry, and the hybridization of the central atom. For each non ionic species, state whether it will be polar or nonpolar. a) SeO2 b) XeF4 c) PCL5 d) BrF2-
Balance the following oxidation-reduction reactions that occur in basic solution.
Explain what concentration of Ag is required to precipitate only AgBr in a solution that contains both Br- and Cl- ions at a concentration of .03 M
Horizontally write the molecular orbital configuration for O2 2- , O2, and O2 -. Then state the bond order for each. Which of these compounds and ions are paramagentic and which are diamagnetic
While 46g of I2 and 1.0g of H2 are heated at equilibrium at 450 Celsius, the equilibrium mixture contains 1.9g of I2 a) Explain how many moles of each gas are present in the equal mixture
Determine the mass of sodium phosphate that yields 1.00 g of calcium phosphate precipitate.
Calculate the enthalpy change (in J) when a 4.08 g sample of water at 26.4 °C and 1 atm is frozen to ice at -20.4°C and 1 atm.
Demonstrate the wave function for a H atom with quantum numbers n=3, l=1 ml=-1 is a solution to the TISE
consider the following ksp values for metal sul?desmgc2o4 8.6 times 10-5coc2o4 2.7 times 10-9cuc2o4 2.9 times
At a height of 310 km above the Earth's surface an astronaut determines that the atmospheric pressure is about 1.27E-8 mmHg and the temperature is 597 K. Explain how many molecules of gas are there per milliliter at this altitude. Enter the number..
A complex with the composition [MA2B2]X2 is found to have no geometrical isomers. Both A and B are monodentate ligands. The structure of the complex is
consider the following equilibrium process at 700degc.2h2g s2g 2 h2sganalysis shows that there are 2.50 moles of h2
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