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The range of human hearing spans an intensity range of one trillion to one, or 1012 : 1. This is a pretty huge range, and we discussed a couple examples of things that span this range in size. The point of this problem is to come up with a couple of your own examples. Go to this interactive web site, https://htwins.net/scale2
that shows examples of objects at different length scales. Give at least two examples of pairs of objects, where one object is a trillion times larger than the other. (Note that you will need to use a browser that supports flash, or watch the youtube video if your browser doesn't support the interactive version. Also note that the length scale in meters appears in the lower-right-hand corner of the screen.)
Thiosulfate was used to mask the copper in a 20.00 mL aliquot. Titration of the lead and zinc in this aliquot required 34.06 mL of the EDTA solution. Finally, cyanide was used to mask the copper and the zinc in a 25.00 mL aliquot. Titration of the..
manganese makes up 1.3 x 10-4 by mass of the elements found in a normal healthy body. how many grams of manganese
What is the empirical formula of a compound composed of 3.25% hydrogen (H), 19.36% carbon (C), and 77.39% oxygen (O) by mass. HCO
A flask is filled with vapor by boiling a volatile unknown liquid in the foil covered flask. As it boils away, the vapor of the unknown pushes the air out of the flask through a tiny pinhole opening and eventually the flask is filled with an atmos..
2Al(s) + 6HCl(aq) 2AlCl3(aq) + 3H2(g) According to the equation above, how many grams of aluminum are needed to completely react with 3.93 mol of hydrochloric acid
When the nuetron to proton ratio in a raditoactive isotope is higher than that required for stability, it main gain greater stability by emitting
Olive oil is completely burned in oxygen at 100.3oC according to: C57H104O6(l) + 80O2(g) ? 57CO2(g) + 52H2O(g) ?Hrxn = -31150 kJ Calculate the change in the internal energy ?E "?U" (in kJ)
Compute the theoretical quantities of thionyl chloride and sodium borohydride needed to convert benzoin to E-stilbene
Consider the base monosodium phosphate and Write the structure of the conjugate acid of this base- ineffective for extracting C7H6O2 from a diethyl ether solution.
What is the minimum pH required to prevent the precipitation of SnS in a solution that is 0.0010 M Sn(NO3)2 and saturated with H2S (0.10 M)? (ksp = 1.0 x 10 ^-25 K1K2 = 1.3 x 10 ^-20)
Calculate the heats of reaction for the following unbalanced reactions. Then use Hess' law to find the heat of reaction for the overall process.
How many grams of urea must be added to 88 milliliters of water in order to obtain a solution with a mole fraction of 0.012 in urea
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