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Phosphorus-32 is used in the treatment of leukemia. It has a half-life of 14 days. If a sample received by a medical lab has a mass of 16.0 g, how many grams of the sample is still active 8.0 weeks later. Assume 1 week = 7 days.
The volume of a sample of gas (2.49 g) was 752 mL at 1.98 atm and 62 degrees Celsius. the gas is? SO2, SO3, NH3, NO2, or Ne
Use the data from this table of thermodynamic properties to calculate the maximum amount of work that can be obtained from the combustion of 1.00 moles of ethane, CH3CH3(g), at 25 °C and standard conditions.
Suppose you burn exactly 1.50g of benzoic acid, C6H5CO2H, in a combustion calorimeter and find that the temperature of the calorimeter increases from 22.50 to 31.69°C.
calcualte the precentage error that would result from the use of the ideal gas equation of state for the calculation.
Ozonolysis of a single enantiomer of R produces S, an acyclic, optically active ketoaldehyde of formula C6H10O2. Propose structures for compounds Q, R, and S. Do not label them; simply draw all three of them in the space provided in any order.
Trying to compare two samples explain how can you tell which one benefited the most from crystallization
65.50 ml of 0.161 m hf is titrated with 0.1200 m naoh. what is thenbsp ph after 65.50 ml of base have been added? ka
Describe exactly how you will prepare 100 mL of 4M KCL. This solution is an "Ionic Strength Adjuster" solution and is usually labeled "ISA"
Explain while sodium metal comes into contact with water, hydrogen bubbles out of the solution presenting a potential fire hazard. 2 Na(s) + 2 H2O ? 2 NaOH(aq) + H2(g). Compute the mass of hydrogen gas produced by adding 20 g of sodium metal to exce..
What purpose does Acetic Acid serve in the hypochlorite oxidation of cyclohexanol? What advantages does the hypochlorite oxidation offer over conventional methods such as chromium oxidation?
A mole of hydrogen atoms contains 6.02X10^23 atoms, A section of outer space contains 25 atoms. How many moles of hydrogen is this
It takes 78.2 J to raise the temperature of 45.6 g lead by 11.3 degrees C. Calculate the specific heat capacity of lead
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