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A glass bulb of volume 0.136 L contains 0.7031 g of a gas at 759 Torr and 99.5 degrees C. What is the molar mass of the gas?
The isotope 22Na has a half life of 2.60 years. How much of a 1.00 gram sample would be left after 1.00 yr
Make a rough sketch showing how the following properties of a baseball depend on time, from the moment it is hit high into left field to the time it is caught by the outfielder. You may neglect the effects of friction!
An absorption measurement of this ASA solution at 275 nm in a UV-vis spectrometer with a 1.00 cm cell was 0.78. The solvent had an absorbance of 0.01 at 275 nm. Measurement of a 4.05x10-4 M ASA standard solution at 275 nm was 0.579.
In aqueous solution, the hydrated radius of hemoglobin is found to be 3.55 nm. How many water molecules hydrate a hemoglobin molecule?
56.0 mL of 3.50 M sodium hydroxide is combined with 36.0 mL of 1.50 M magnesium chloride. What mass in grams of solid forms
Draw all the structural isomers for the molecular formula C4H9Br. Be careful not to draw any structures by crossing one line over another; the system needs to know where you intend connections to be between atoms. I came up with 4 different struct..
Determine the iodide ion concentration (in molarity) in a solution containing 12.6 g CaI2 dissolved in 2750 mL of solution
What is the lewis dot structure of Cl2O add formal charges to the atoms remember that the formal charges will add up to the ion charge
Select all the statements that correctly describe the relative rates of the reactions described below. (I) Sec-butyl bromide reacts faster than isobutyl bromide in aqueous formic acid.
A solid mixture weighing 1.372 grams and containing only sodium carbonate and sodium bicarbonate required 29.11mL of 0.734M HCL for a complete titration. what is the grams of sodium carbonate and sodium bicarbonate in this mixture
Suppose you had samples of 1-bromo-3-methylbutane and 2-bromo-2-methyl butane. Choose reaction conditions that will enhance the rate of substitution and decrease the rate of elimination for each.
Draw three possible structures for the B3H8- ion. Clearly indicate any three-center bonds. Which structure is most plausible (considering molecular orbital theory)
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