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Compute the effective radiation dosage (in Sieverts) for a 67kg person who is exposed to 6.9*10^9 particles of alpa radition. Presume that 77% of the radiation is absorbed, each alpha particle has an energy of 6.6*10^-13 J, and that the RBE of the alpha particles is 15. Note that RBE is sometimes call the quality factor, abbreviated as Q.
A variation of this experiment uses a balloon as the container for the carbon dioxide. Describe any additional measurements that you must make in order to find the molar mass by this method.
Determine the molarity of the solution that is prepared as follows: 73.0 g of magnesium of nitrate is dissolved in enough water to make 550.0mL of solution. molarity
Draw the structure of methyl red, and explain why it absorbs in the visible region of the spectrum. using resonance, explain why the acid form has a wavelength of max absorption at longer wavelength
why must the equipment for a grignard reaction be very dry? in some reactions simply rinsing with acetone prior to the
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-
Determine the osmotic pressure of a solution that is 0.200 M in glucose and 0.100 M in sodium chloride at 37.0 degrees celsius. Assume no ion pairing.
Colbalt monoxide CoO, the blue color in ceramics glazes, is prepared by decomposing cobalt (II,III) oxide at 950degree celsius.
If, at a given temperature, the equilibrium constant for the reaction H2(g) + Cl2(g) 2HCl(g) is ?6.0, then the equilibrium constant for the reaction HCl(g)
Draw the structural formulas for any three compunds with the molecular formula C4H10O. If its an alcohol, classify each alcohol as primary, secondary, or tertiary?
Classify the following compounds and ions as strong acid, weak acid, strong base, weak base, or neutral. For each write the reaction(s) that justify your decision. If a substance is amphiprotic, show both reactions.
Explain a solution with a volume of 75.0 mL contains 15.5 mmol HCHO2 and 8.50 mmol NaCHO2. Explain what is the pH of this solution
In the acid-base reaction between Sr(OH)2 and HNO3, 0.75 L of 0.85 M Sr(NO3)2 is formed upon the reaction of 0.515 L of HNO3 solution and excess Sr(OH)2.
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