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A particular radioactive isotope of iodine contains 78 neutrons and is utilized for the detection of protein-losing enteropathy and therapeutically in thyroid cancer. In the full atomic symbol for this radioactive iodine what numbers would be written in the left superscript and left subscript positions, respectively?
Phosphate systems form essential buffers in organisms. Calculate the pH of a buffer made by dissolving .8 mol of NaOH in .50 L of 1.0 M H3PO4
Given that the partition coefficient for a solute is K in a water-ether solvent extraction system, is it more effective to do one extraction with V mL of ether or three extractions with V/3 mL of ether
a system at equilibrium or striving to reach equilibrium responds in a way that best ac- commodates or reduces any
what is the underlying electronic reason for all periodic trends?
an interference filter based on the first order interference is to be constructed. it is indicated that the filter will
question the first line of the balmer series occurs at a wavelength of 656.3 nm. what is the energy difference between
Problem- An enzyme catalyzes a reaction with a Km of 6.00 mM and a Vmax of 4.50 Mm x s^-1. Calculate the reaction velocity, v0 for the following substrate concentrations
The cell constant of a conductivity sell is equal l/A. The resistance of the NaCl solution is found to be 254 Ω . Using the same sell the resistance of the 0.05 M KCL is found to be 467 Ω . Estimate the NaCl concentration if the molar conductivity ..
the solubilities of cholesterol in water and chloroform are0.250 mg100ml and 1.00 g4.5ml respectively. estimate
When 3.00 mol of benzene is vaporized at a constant pressure of 1.00 atm and at its normal boiling point of 80.1°C, 101.8 kJ are absorbed and P?V for the vaporization process is equal to 8.70 kJ then
Write the chemical formulas and names of binary acids and oxoacids that contain Group 7 A elements. Do the same for elements in Group 3A, 4A, 5A and 6A.
An object has a mass of 6.85g. when placed in a graduated cylinder containing 25.0 ml of water, the water level increased to 28.8 ml. Calculate the density of the object
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