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The piton of an internal combustion engine compresses 671 mL of gas. The final pressure is 15 times greater that the initial pressure. What is the final volume of the gas, assuming constant temperature.
Bottled propane is used in areas away from natural gas pipelines for cooking and heating, and is also the source of heat in most gas barbecue grills. Propane burns in oxygen according to the following balanced chemical equation.
Three gases, hydrogen, argon, and methane are confined in a 8.00 L vessel at a pressure of 6.00 atm. The vessel contains 4.00 moles of hydrogen, 5.00 moles of argon, and 2.00 moles of methane. What is the partial pressure of methane?
evaluate its purity and to determine whether it might be identical to a given sample of an illegal drug, a white crystalline solid. Clearly explain what you would do, why you would do it, and how you interpret your results
Consider a solution that contains 73.0% R isomer and 27.0% S isomer. If the observed specific rotation of the mixture is -89.0°, what is the specific rotation of the pure R isomer
Using a table of standard reductions, determine what the potential of each reduction below would be versus the S.C.E. a. Ag+ (aq) + e - ? A(s) b. Ni2+(aq) + 2e- ? Ni (s)
How many grams of acetylene are produced by adding water to 5.0 grams CaC2
Ozone decomposes to oxygen gas. 2 O3(g) 3 O2(g) A proposed mechanism for this decomposition is shown below. O3 O2 + O (fast, equilibrium) O3 + O 2 O2 (slow) What is the rate law derived from this mechanism
buffer solution from a solution of 0.200-M aniline, C6H5NH2, a weak base, and a solution of 0.100-M hydrochloric acid. take the pKa of aniline to be 9.13.
Caffeine with a mass of .265 g was used to prepare caffeine salicylate derivative. How do you find the theoretical yield of caffeine salicyIate
Given the pK for acetic acid is 4.76. Suppose that we dissolve a mole of this weak acid in 10L of water. Find the pH of the resulting solution.
How many hemoglobin molecules are there in an average red cell? Assume that the molecular weight of the human hemoglobin tetramer is 65 kd. (The answer is 2.74x10^8, but I don't know how to calculate it)
Eventually, the water becomes saturated with respect to NaCl. Write a balanced chemical reaction illustrating the precipitation of NaCl and explain saturation
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