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A gas mixture consists of 320mg methane, 175mg of argon, and 225mg of neon. The partial pressure of neon at 300K is 8.87kPa. Calculate (a) the volume and (b) the total pressure of the mixture.
Calculate and indicate values of nonzero formal charges. Based on formal charges, circle the preferred structure.
The entry of Na+ provides a free-energy input of 10.8 kJ/mol under typical cellular conditions (external [Na+] = 143 mM, internal [Na+] =14 mM and a membrane potential = -50 mV). What is the ratio of glucose concentration outside and inside cells?
Describe the expected results of the following tests or reagents on the sphingolipid N-palmitoyl-D-sphingomyelin
How many grams of water can be cooled from 36 degrees celsius to 23 degrees celsius by the evaporation of 53g of water.
If you weigh the lauric acid to the nearest 0.1g and you weigh the unknown solid to the nearest 0.0001g, can you calculate a molar mass of your unknown solid to three significant figures. Show clearly your reasoning.
What is the pH of a 0.430 M ammonia solution. What is the percent ionization of ammonia at this concentration
Arrange the elements Li, Be, Ne, and Ar in increasing order of the energy required to remove an electron from their respective gaseous atoms.
An evaluation of R was performed, following the procedure described in this module. The barometric pressure was 736 torr, the temperature was 295k and volume of hydrogen gas collected was 35.6 mL. The calculated value of R was 82.1 mL atm K^-1 mol..
The density of water vapor at 327.6atm and 776.4K is 133.2gm/dm^3. determine the molar volume Vm of water and the compression factor Z from these data
What is the total pressure in a 11.0 L flask 20.0°C, which contains 0.127 moles of H2 and 0.288 moles of N2
What types differences in the H-NMR spectra of starting material and product do you expect to see camphor, borneol
In the formation of dibenzalacetone, do you expect the configuration of the double bonds in this compound to be E,Z, or a mixture of both? WHY?
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