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What is the maximum age of a sample that can be measured by 14C dating if the error of measurement is 0.5%? [NOTE: You may assumed that the half-life is 5700 years].
First Ionization Energies across a period, e.g., period 2. explain in detail why there are anomalies for Boron and Oxygen. Explain the subshell hybridization of elements such as copper or chromium
How much A would have been extracted into ether if the orginal aqueous solution had been extracted once with a 500-mL portion of ether? What percentage of A would have been extracted by the ether?
Draw the lewis dot structure oxalate and for carbon dioxide. In terms of electronic structure, what happens when oxalate decomposes
Four wavelengths of light are each quantized to excite electrons of a given atom to a particular higher energy shell. Assign wavelengths of 496nm, 356nm, 701nm, and 591nm
If 0.50 moles of liquid cyclohexanone (C6H10O) is completely combusted, how many moles of O2 are required
Calculate the transformation rate for the austenite-to-pearlite transformation at 650 °C and at 600 °C. Show the relationship(s) you used to arrive at your answers.
if a 2.5 L of Hydrogen is collected over water at 40C and 767 mmHg, what is the volume of dry gas at standard conditions, The vapor pressure of water is 55.3 mmhg at 40 C
What was the molar solubility of CaCO3 in this solution (Kb1(CO32-) = 1.8 × 10-4)
A 0.204 g sample of a CO3^2- antacid is dissolved with 25.0 mL of a 0.0981 M HCl. The hydrochloric acid that is not neutralized by the antacid is titrated to a bromophenol blue endpoint with 5.83mL of 0.104 M NaOH. a) Calculate the number of moles..
If the minimum energy required to break the C-Cl bond in CF3Cl is 540 kJ/mol, what is the longest wavelength of radiation that will break this bond?
Explain the purpose of the "Thermodynamic properties of Urea " Experiment. Also , ca you please tell me any possible sources of error
determine K for this reaction When a sample of 5.63 grams of pure C 5 H 6 O 3 (g) was sealed into an otherwise empty flask of 2.50 L and heated to 200.
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