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A promising new method of treating various types of lymphomas uses beta particles from the decay of 90Y (each with an energy of about 1.44 x 10 -13 J) to aggressively destroy cancerous cells. If a 2.10 kg mass of body tissue exposed to the radiation absorbed 3.60x105 beta particles, and the RBE factor is 0.80, how many REMS did the patient absorb
A particular brand of gasoline has a density of 0.737 at 25 degree celsius. How many grams of this gasoline would fill a 14.4 tank?
Nitrous oxide gas is used by some denatl practitioners as a anesthetic. Nitrous oxide can be produced in small quantities in the laboratory by cardful heating of ammonium nitrate. Write the unbalanced chemical equation for the reaction.
How do I calculate Apparent volume of dry sand and Actual volume occupied by sand particles Using the data below? Also need to know how to calculate the density of sand(based on apparent volume) Mass of graduated cylinder + Table Sand = 26.1g Mass..
What are the mole fractions of ethanol, C2H5OH, and water in a solution prepared by mixing 55g of ethanol with 45g of water
For the reaction: 2N2O5(g) -> 4NO2(g) + O2(g) at the time when N2O5 is being consumed at a rate of -6.0 × 10-4 M/s, what is the rate at which O2 is being formed?
Assume that .20 mol of the acid is added to 250 mL of water. To make a buffer of pH = 4, how many moles of the conjugate base must be added to the solution?
write out a balanced reaction of methyl salicylate with 2.0 M sodium hydroxide solution to yield, upon work-up with 6.0 M hydrochloric acid, salicylic acid and methanol 2) provide the complete mechanism for the above reaction
At 25oC, the acid dissociation constant for hypochlorous acid HOCl is 3.5E-8. Calculate the concentration of the hydronium ion in an aqueous solution of 0.30M HOCl.
A gas at 225 K and 40 bar has a molar volume 26% larger than that calculated from the ideal gas law. (a) Calculate the compression factor Z for the gas under these conditions. (b) Which are dominating in this sample, the attractive or repulsive force..
Rank each of the following measurements from smallest to largest
a block of aluminum with the volume of 96.5 g absorbs 65.3 J of heat. If the initial temperature is 31.2 degrees celcius, what is the final temperature.
a 130g piece of metal is heated to 286C and dropped into 87.0g of water at 26C, if the final temperature of the water is 58.3C.
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