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A partially filled plastic balloon contains 3.4 X 10 3 L of helium gas at 5 o C. The noon day sun heats this gas to 37 o C. What is the volume of the balloon if atmospheric pressure remains constant?
Draw the structure of the peptide WRCFQ. Show the ionization state that would be the major form at pH 7. (Note: this question addresses your knowledge of the one or three letter codes for amino acids,
What is the pH of a 1L buffer containing 1.5M Acetic Acid and 1.0M Sodium Acetate? What is the pH of the buffer when 0.5 moles of NaOH is added to solution? Assume no change in volume.
Question- In the ammonium ion, the nitrogen atom has donated an electron. Would you expect the geometry of the ammonium ion (NH4-) to differ from the methane molecule. Why
Although his product was a white solid, it melted over a broad temperature range that was much lower than the melting point of vanillyl alcohol. His instructor suggested washing the product with dilute sodium bicarbonate; when he did so, about hal..
how much heat is needed to make 220.6g of ice at -10 degrees celsius to steam at 110 degrees celsius?how much energy is
The second order rate constant for a reaction is 4.2300 x 102 M-1s-1. If the initial reagent concentration is 0.93800 mol/L, determine the time (in seconds) required for the reagent concentration to reach 0.21800 mol/L.
If the ice has a coefficient of kinetic friction of 0.05, how much work (in J) is done by the Skiiers pulling their equipment 591-m at a constant velocity?
What is the maximum strength of acetic acid waste ( as TOC in mg/L) that can be discharged without violating either permit requirement? ( recall that TOC in mg/L , measures the number of miligrams of carbon per liter)
Presume you have 100 mg of a sample dissolved in 0.6mL of water. The partition coefficient for the compound in water and ether is 4.0. Compute how much total compound you would obtain with 3x0.2mL extractions with ether.
A solution is made by dissolving 45 g toluene (C7H8) in 125 mL of liquid benzene (C6H6; d=0.874 g/mL). What is the molality of toluene in the resulting solution.
A proposed mechanism for the gas phase reaction between nitrogen monoxide and oxygen is as follows:
Diet coke Chemistry, You drink a 500 ml bottle of Diet Coke, which has 0 calories. The Diet Coke was chilled to 7 degrees C before you drank it. Approximately how much heat energy is drawn from your body to warm this 500 ml of Diet Coke up to your..
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