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A giant sequoia tree cut down in 1891, in what is now Kings Canyon National Park northeast of Los Angeles, contained 1342 annual growth rings. If a sample of the tree was removed for radiocarbon dating (radio = radioactive) today, what would be the ratio of the C-14 concentration in the innermost (oldest) ring compared with that in the outermost (youngest)? Assume that the density and overall carbon content of the wood in the rings are the same.
Nitrogen and oxygen gases react to form dinitrogen trioxide gas. 2 N2(g) + 3 O2(g) -> 2 N2O3(g) At a certain temperature and pressure 4.2 L of N2 reacts with 6.3 L of O2.
Use resonance forms to show the delocalization (over four carbons atoms) of the positive charge of the benzyl cation
Draw the skeletal structure of the organic species containing the carbonyl functionality needed to form 3-ethyl-1-pentanol upon metal-catalyzed hydrogenation.
If the sample contains a combined total of 1.50 mol and has a total mass of 45.0g, what are the percentages of CO2 and Ne in the sample by mole?
An aqueous solution of NaNO3 is 22.0% NaNO3 by mass. The density of the solution is 1.127 g/mL. Calculate the molality, the molarity and the mole fraction of NaNO3.
what is the literature ksp value for potassium hydrogen tartrate at different
Use the stoichimetery of the equation and the dilute titanium 4 chloride solution for the following: How many moles of solid product can be formed?
why do we have to make sure we light the fire and remove the lighter quickly to burn the nuts
Determine All the products of acid-catalyzed dehydration of 2-pentanol. Show the mechanism for one of the products.
The specific heat of iron is 0.451 J/g·°C. If 12.04 kJ of heat energy are applied to 180.0 g of iron at an initial temperature of 22.0°C, what is the final temperature of the iron
if you prepare a 1.00 solution of beginning with water at 27.5 what is the final temperature of the solution in ?
Concentrated HCl was added to a Ca(OH)2 suspension (in water) and the precipitate dissolved. Explain this observation on the basis of a Le Chatelier's shift in the equilibrium.
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