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After doing some analysis, the probe determines that the gas pocket contains an element that has an ionization energy of I= 1350 Kj/mol and an electron affinity of EA= 32.0 Kj/mol. What is the identity of this element?
Draw the lawis structure and structural formulas for CCl3F. Sketch the space-filing model and the charge-density model for this molecule.
Lead-210 has a half-life of 20.4 years. This isotope decays by beta particle emissio, Calculate the mass defect and binding energy
Calculate the 1) mls of 15M Acetic acid 2) the grams of sodium acetate 3) and the mls of water required to make a 500mM acetate buffer at pH 4.85
A strip of electrolytically pure copper weighing 3.178 gram is strongly heated in a stream of oxygen until it is all converted to a black oxide. The resultant black powder weighs 3.978 g. What is the formula of the oxide?
What is the concentration of the HNO3 solution? (b) How many moles of NaOH were in excess after the first addition?
A chemist dissolves 0.099 g of CuSO4 · 5 H2O in water and dilutes the solution to the mark in a 500-mL volumetric flask. A 36.1-mL sample of this solution
Determine what would the pressure be if the volume of this sample gas is decreased to 5.38 Litre also state that which law of gas is used in this process?
1.628 G Sample Of A Hydrate Of Magnesium Iodide Is Heated Until Its Mass Is Reduced To 1.072 G And All Water Has Been Removed. What Is The Formula Of The Hydrate?
When 27 mL of a 405 mL stock solution containing 2.3 M AlCl3 is diluted to 81 mL, what is the concentration of Al3+ in the new solution?
A 1 L flask is filled with 1.45 g of argon at 25 C}. A sample of ethane vapor is added to the same flask until the total pressure is 1.25 atm.what is the partial pressure of argon in the flask?
A sample of neon gas has a volume of 282 mL AT 160 degrees celsius. The sample is cooled at constant pressure to a volume of 685 mL. What is its new temperature?
To find the pKa of X-281, you prepare a 0.075 M test solution of X-281. The pH of the solution is determined to be 3.00. What is the of X-281.
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