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A vial contains radioactive iodine-131 with an activity of 2.0 mCi/mL. If a thyroid test requires 2.0 mCi in an "atomic cocktail," how many milliliters are used to prepare the iodine-131 solution?
In the first 10.0 seconds of the reaction, the concentration of I-dropped from 1.000M to 0.868M - Compute the average rate of this reaction in this time interval as well as predict the rate of change in the concentration of H+, H2O2 and I3- during..
Evaluate the z-component of the angular momentum and the kinetic energy of a particle on a ring that is described by the (unnormalized) wavefunctions e^iΦ ,e^-2iΦ ,cosΦ ,(cosφ)e^iΦ , (sinφ)e^-iΦ
an ideal monatomic gas expands isobarically from state a to state b. it is then compressed isothermally from state b to
Dry ice (solid CO2 ) has occasionally been used as an "explosive" in mining. A hole is drilled, dry ice and a small amount of gunpowder are placed in the hole, a fuse is added, and the hole is plugged.
calculate the molarity of acetic acid in a vinegar sample knowing that 5.00 ml of vinegar requires 43.50 ml of 0.105 m
Calculate Kc for the reaction 2CCl4(g) + O2(g) [3] 1.75 moles of H2O2 were placed in a 2.50 L reaction chamber at 307C. After equilibrium was reached, 1.20.
0.30 g of hydrogen chloride (HCl) is dissolved in water to make 4.5 L of solution. What is the ph of the resulting hydrochloric acid solution
What is the approximate pH of a solution prepared by adding 20 mL of 0.10 M NaOH to 200 mL of 0.10 M HCl?
There are 2.60*10^15 short tons of oxygen in the atmosphere {1short ton = 2000 lb). Explain how many metric tons of oxygen are present (1metric ton = 1000Kg).
which of the following would have the lowest freezing point?a. 1 m cano3b. 0.1 m kno3c. 0.1 m hcld. 0.1 m sucrosee. 0.2
Sodium carbonate Na_2CO_3) is used to neutralize the sulfuric acid spill. How many kilograms of sodium carbonate must be added to neutralize 4.03×103 kg of sulfuric acid solution?
an argon ion laser puts out 5.0 w of continuous power at awavelength of 532 nm. the diameter fo the laser beam is 5.5
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