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- (a) Show that if you assume the average nucleus is spherical with a radius r=r0A1/3, and with a mass at A u, then its density is independent at A. (b) Calculate that density in u/fm3 and kg/m3, and compare your results with those found in Example 31.1 for 56Fe.(a) If the average molecular mass of compounds in food is 50.0 g, how many molecules are mere in 1.00 kg at food? (b) How many ion pairs are created in 1.00 kg of food, if it is exposed to 1000 Sv and it takes 32.0 eV to create an ion pair? (c) Find the ratio of ion pairs to molecules. (d) If these ion pairs recombine into a distribution of 2000 new compounds, how many parts per billion is each?i dont understand where cos45 and sin 45 came from also subsituting the values doesnt get 22.21 which is the result, also P is incorrect it should be 24.7W
- 1. Derive (4) from (3) and explain why a certain term was neglected. Explain the validity in neglecting that term. ΔΑ = (Lo + ΔL)(W% + ΔW) – LoWo ΔΑ = 2αΑ ΔΤ (4)1) Determine the absorption coefficient u (7.2 keV) for Fe metal? Pre= 7.86 g/cm? O re (7.2kev) =393 cm²/g1. On a typical Atomic Absorption Spectrophotometer, what are the detection limits for iron? (i.e. What are the maximum and minimum concentrations that can be measured?) 2. What happens when the existing concentration of ions, substituted into a Ksp expression, exceeds the numerical value of Ksp?