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Problem- Calculate the radiation dosage (in grays) for an 77-kg person that is exposed for 3.0 seconds to a 3.0 Ci source of beta radiation. Assume that 100% of the radiation is absorbed and each beta particle has an energy of 2.0× 10-13 J.
Somebody please help I have no idea how to do this one
How many grams of NaNO2 form when 429 g NaNO3 react? The yield is 90.%.
which phase transitions more likely to occur?
If the Ecell measures 1.40 V, what is a more accurate molar concentration of Cr3+, assuming the molar concentration of Ag+ is accurate. What is the sign of the cathode in a galvanic cell. What type of reaction occurs at the cathode.
you have a 10.40-g mixture of table sugar c12h22o11and table salt nacl. when this mixture is dissolved in 150. g of
The initial concentration of lead(II)nitrate is 0.250M. and we used 1.00 ml. the lead(II)nitrate was titrated with 7.96 ml of 0.0500M of potassium iodide.
A quantity of 200.0 mL of 0.862 M HCl is mixed with 200.0 mL of 0.431 M Ba(OH)2 in a coffee-cup calorimeter (Hint: write and balance the chemical equation for this neutralization process). The initial temperature of HCl and Ba(OH)2 is the same at ..
a typical person has 200 mg of cholesterol pr 100 ml of blood. If the total blood volume of an individual is 5 liters, how many grams of total blood cholesterol does the individual contain?
considering the process rbl rarr rbg at 1 atm and 686degc in this process it is given that rubidium has a heat of
Calculate the mass of Nitrogen (N2) that will react completely with 6.00g of Hydrogen (H2) to form Ammonia, via the reaction: N2+3H2=2NH3
State the meaning of alpha and beta with regard to steroid structure, and indicate whether the hydroxyl group on ring A and the alkyl group on ring D are alpha or beta
Differ from the ideal pressure? The value For N 2 gas is given as , a = 1.390 L2atm/mol2 and b = 3.910E-2 L/mol.
The activation energy of a certain reaction is 46.7 kJ/mol. At 20 C, the rate constant is s^-1. At what temperature would this reaction go twice as fast
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