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The Goodyear blimps, which frequently fly over sporting events, hold approximately 1.60×105 ft^3 of helium. If the gas is at 25deg C and 1.0 atm, what mass of helium is in the blimp?
If the highest possible oxidation state for the halogens is +7, and the lowest possible is -1 which of the following could not disproportionate?
It is well known that the element magnesium has three naturally occurring isotopes. Mg-24 represents 79.0% of all magnesium atoms, Mg-25 accounts for 10.0%, and Mg-26 is the remaining 11.0%. If you have 254. atoms of magnesium, how many should be ..
When caffeine is treated with HCl what solvent is the resulting compound more soluble in? Methylene chloride, chloroform, or water When carboxylic acid is treated with a base such as NaOH
In trans-1,2-dibenzoylethylene, even though the conjugated C=O group frequency coincides directly with the expected C=C stretching frequency, we would not have expected to observe the latter stretching mode in the infrared spectrum. Why
Assume that you need to prepare 4-methyl-2-pentyne and discover that the only alkynes on hand are acetylene and propyne. You also have available methyl iodide, isopropyl bromide, and 1,1-dichloro-3-methylbutane.
A reversible liquid phase endothermic reaction is to be carried out in a plug flow reactor. For minimum reactor volume, it should be operated such that the temperature along the length A. decreases. B. increases
What chemical reaction takes place when solid sodium sulfide is dissolved? Explain by writing the chemical equation. Include physical states for all species (including liquid for water).
If the average speed of an oxygen molecule is 4.43 multiplied by 104 cm/s at 25°C, what is the average speed of a CO2 molecule at the same temperature?
A compound is 40% C 6.70% H and 53.3% O by mass. the molecular formula of this compound is 60 amu, what are the subscripts of C, H, O
Write a blance equation with Cu, NaI, I2, and a drop of acetic acid to form CuO and CuCO3.Cu(OH)2.
Why can the nature of the metal salt precursor be changed during the epoxide addition method so easily without altering
Determine the oxidation of each element in the following compounds: a. CH3COO- b. NaClO3 c. Al2O3
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