1285g sample of na2so4 is exposed to the atmosphere and
1.285g sample of Na2SO4 is exposed to the atmosphere and found to gain 0.393g in mass. What is the percent, by mass, of Na2SO4*H2O in the resulting mixture of anhydrous Na2SO4 and the decahydrate?
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a daredevil is shot out of a cannon at 450deg to the horizontal with an initial speed of 260 ms a net is positioned a
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rock 1 is thrown straight down from a tower rock 2 is thrown straight up from the same height at the same speed as rock
1285g sample of na2so4 is exposed to the atmosphere and found to gain 0393g in mass what is the percent by mass of
mamas stuffin is a popular food item during the fall and winter months but it is marginal in the spring and summer
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a man walks westward on ship with a speed of 4kmhr the ships propeller drives it 15kmhr south what is the actual speed
consider the transitions 3d --ampgt2p in hydrogen calculate the possible energies of emitted photons taking into
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