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At what angle (in degrees) does first-order diffraction from layers of atoms 340.8 pm apart occur, using x rays with a wavelength of 120 pm?
The IR spectrum of HCN shows 3 absorption bands at 3312 cm^-1, 2089 cm ^-1, and 712cm^-1. From this info alone can you deduce whether HCN is linear or not? Explain.
Write a balanced equation including states of matter for the reaction of Zn(H2O)4 in aqueous NaCN.
The Ksp for BaCO3 is 5.0 x 10-9. What is the molarity of a saturated aqueous solution of BaCO3
When a 5.49-g sample of gaseous hydrogen bromide dissolves in 33.0 g of water in a coffee-cup calorimeter (see above figure) the temperature rises from 21.00 oC to 62.66 oC. Calculate H in kJ/mol HBr for the solution process.
Write two balanced half reactions for the titration of iodine with sodium thiosulfate. Indicate what is being oxidized and what is being reduced.
It is burned in excess O2 to form a mixture of water and carbon dioxide that contains 1.5 times as many moles of CO2 as of water. Find the mass of C2H2 in the original mixture.
Show the terminal alkyne and alkyl halide from which the following products can be obtained. If two routes look freasible, list both
If 29.10 mL of a 0.145 M nitric acid is required to neutralize 50.00 mL of barium hydroxide solution, what is the molar concentration of the base?
what is the chloride concentration ppt (W/V) of you sample? (include a standard deviation in your result) The standard deviation for the electronic balance used to weigh the AgCl is 0.15 mg.
how many grams of sodium benzoate should be added to prepare the buffer?
Use VSEPR theory to describe the bonding in propene. Also, include bond angles in your explanation.
Reaction would go to the left, making more "products" 2. Reaction would go to the right, making more "products" 3. No change on the equilibrium position
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