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In the course of pumping up a bicycle tire, a liter of air at atmospheric pressure is compressed adiabatically to a pressure of 7 atm. (Air is mostly diatomic nitrogen and oxygen.)
(a) What is the final volume of this air after compression?
(b) How much work is done in compressing the air?
(c) Ifthe temperature of the air is initially 300 K, what is the temperature after compression?
The active ingredient in Pepto-Bismol is bismuth subsalicylate, C7H5Bi04. Anslysis of a 1.500-g sample of Pepto-Bismol yeilds 346 mg of bismuth. What percent by mass is bismuth subsalicylate
Question- The lindlar catalyst is used to stop the hydrogenation of an alkyne at the alkene product. What would be the product of this reaction when the alkyne is 3-heptyne. Write the equation and show the stereochemistry of the product.
Question- Both aqueous HCl and HNO3 are strong acids (equal acidity in water); yet CuO will dissolve more easily in 1 M HCl than in 1 M HNO3. What happens to account for this difference
The temperature increased by 10.08 oC. Use these data, plus the information given below for CO2 and H2O, to estimate the standard enthalpy of formation,
to calculate the number of molecules of a gas using ideal gas law and avogadros number.ozone molecules in the
The following measurements refer to the same solution, but one is incorrect. Identify the incorrect value and enter the correct value in the space below. Enter exponents using "e-notation
Question- The value for the standard emf of a voltaic cell described by the balanced chemical equation is 0.37 V. Determine the value (V) of the standard half cell potential for the Cu+/Cu couple.
find the number of representative particles in each given substance 1 3.00 mol sn2 0.400 mol kcl3 7.50 mol so24 4.80 x
What fraction of myoglobin will be loaded with oxygen under the conditions that allow 50% of hemoglobin exist in oxygen-bound state? Assume that p50 (myoglobin) = 2.8 torr, p50 (hemoglobin) = 26 torr.
Problem- Part a) If 4.5 moles of methane (CH4) are reacted with 16.2 moles of chlorine (Cl2) and each reaction occurs with an 80% yield, how many moles of CCl2F2 are produced if the HF is in excess
A chemistry student needs 40.0 mL of pentane for an experiment. By consulting the CRC Handbook of Chemistry and Physics, the student discovers that the density of pentane is 0.626 g cm^3. Calculate the mass of pentane the student should weigh out.
Problem- A certain protein made of a single polypeptide chain contains 158 amino acids. Which of the following pieces of mRNA would be the smallest piece that could code for this polypeptide
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