what is the mass in grams of 1.50×10^21 molecules of aspirin c9h8o4?
is the type of speciation seen on islands more likely to be the results of anagenesis or cladogenesis?
Two narrow slits are 0.12 apart. Light of wavelength 550 illuminates the slits, causing an interference pattern on a screen 1.0 away. Light from each slit travels to the maximum on the right side of the central maximum.How much farther did the light from the left slit travel than the light from the right slit?
Sulfuric acid (H2SO4) is a very strong diprotic acid. If 0.066 moles of sulfuric acid is mixed with water to make 192 mililiter of solution, what is the molarity of H+?Answer in units of M.
30, 280285. Echtay KS, Roussel D, St-Pierre J, Jekabsons MB, Cadenas S, Stuart JA, Harper JA, Roebuck SJ, Morrison A, Pickering S, Clapham JC, Brand MD (2002) Superoxide activates mitochondrial uncoupling proteins. Nature 415, 9699. Fridovich I (2004) Mitochondria: are they the seat of senescence?
The element Ag has two naturally occurring isotopes 109Ag and 107Ag,and its average atomic mass is 107.868 amu. The natural abundance of 107Ag is51.87% and its atomic mass is 106.905 amu. Calculate the atomic mass of 109Ag
In the drawing, the weight of the block on the table is 426 N and that of the hanging block is 180 N. Ignore all frictional effects, and assuming the pulley to be massless.
What is the molecular shape and electronic geometry for CCl3F ?
A _________ texture would be most unlikely to occur in an extrusive igneous rock.a. pyroclasticb. aphaniticc. phaneriticd. glassy
Experimental Procedure, Part C.1. The density of diamond is 3.63 g/cm3 and the density of lead is 11.0 g/cm3. If equal masses of diamond and lead are transferred to equal volumes of water in separate graduated cylinders, which graduated cylinder would have the greatest volume change? Explain.
