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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.
Write solution with complete explanation of required steps
The oil is burned with 20.0% excess air, based on complete combustion of the carbon to CO2, the hydrogen to H2O, and the sulfur to SO2. The oil is burned completely, but 8% of the carbon forms CO. Calculate the molar composition of the stack gas.
you have a 12 volt lead storage battery in your car you can find the equations for the redox reactions in your text
If 1.00 g of Ca2+ dissolved in 420 mL of water reacts stoichiometrically according to the balanced equation in a reaction solution with a total volume of 1680 mL, what is the molarity (M) of Na+ produced?
For the following electrochemical cell Co(s)| Co 2+ (aq, 0.0155 M)|| Ag+ (aq, 3.50 M)|Ag(s) Write the net cell equation. Phases are optional. Do not include the concentrations.
Use the Ksp values to calculate the molar solubility of each of the following compounds in pure water.
How much PV work is done in kilojoules delta E if 89.5 g of ethylene and 125 g of HCL are allowed to react at atmostphere pressure and volume change is -71.5 L
Xylose has the same structure as glucose apart from that it has a hydrogen atom at C-6 in place of a hydroxymethyl group. The rate of ATP hydrolysis by hexokinase is noticeably enhanced by the addition of xylose as opposed to glucose.
Assume an organic compound has a partition coefficient between water and ethyl acetate equal to 6.21. If there are initially 8.05 grams of compound dissolved in 110.0mL of water
The pressure on 200 ml of oxygen gas changes from 380 mm hg to 760 mm hg. The temperature does not change. What is the new volume of the oxygen gas?
a piece of sodium metal reacts completely with water as follows.2 nas 2 h2ol 2 naohaq h2gthe hydrogen gas generated
Consider the situation in which 1.60 mL of an aqueous CuSO4 solution of unknown concentration is diluted to a volume of 10.00mL.
Not all Friedel-Crafts reacts require a strong Lewis acid catalysts to generate the electrophile for the substitution reaction. Show, using curved arrows, how the electrophile is generated from t-butanol in the presence of H2SO4
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