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Problem- Calculate the effective radiation dosage (in Sieverts) for a 69-kg person who is exposed to 4.9 × 109 particles of alpha radiation. Assume that 81% of the radiation is absorbed, each alpha particle has an energy of 6.7× 10-13 J, and that the RBE of the alpha particles is 15. Note that RBE is sometimes called the quality factor, abbreviated as Q.
Please provide the answer of the given question on urgent basis
1 in the reaction where the potassium chlorate is decomposed into potassium chloride and oxygen. how much oxygen can be
In which one of the following species is the best Lewis structure a resonance structure. a. NH3 b. CO2 c. SF6 d. O2 e. CO32
Explain the halogens form compounds among themselves, called interhalogens and their formulas are XX', XX'3 and XX'5, where X is the heavier halogen atom. Forecast their structures and bond angles
Explain how many moles of Hydrogen ions are concerned in one equivalent of an acid-base reaction also is it possible to have a non-integral values of Valence or Oxidation state
High levels of ozone (O3) make rubber deteriorate, green plants turn brown, and cause people to have difficulty breathing. Calculate delta G at 298 K for the formation of 1 mole of O3 from O2 in urban smog, where [O2]=0.210 atm and [O3]=5.00x10^-7..
A 270- mL flask contains pure helium at a pressure of 749 torr. A second flask with a volume of 470 mL contains pure argon at a pressure of 730 torr what is the partial pressure of He?
Why is a diffraction pattern generated by an electron beam formed by electrons interfering with themselves rather than with one another
Explain a solution is prepared by dissolving 57.87 grams of NaCl in enough water to make 2525mL of solution. Explain what is the molarity of the solution
A 486 mL sample of water was cooled from 50.0°C to 10.0°C. Assuming a specific heat of 4.184 J/K g and a density of 1.00 g/mL, find the amount of heat transferred from the water to the surroundings.
Calculate the pH of the buffer if 10 drops of 0.1mol/L of NaCH3COO is added to 10 drops of 0.1 mol/L of CH3COOH. Equations useful to obtain the solution
suppose sulfur dioxide reacts with oxygen at 25 degrees celsius.2so2 g o2 g -gt lt- 2so3 gthe equilibrium constant kc
0.1 g of Na2CO3 - K2CO3 powder mixture was reacted with excess HCl. According to the gas volumetric measurement, 20.4 cm^3 of CO2 was evolved at 25 degrees Celcius and 730 Hgmm pressure. Calculate the composition of the original mixture
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