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Predict the major product of the reaction between N-propylacetamide and sodium benzoate upon heating at 140C
Two gases, oxygen (28.8 grams) and carbon monoxide (19.0 grams), are confined in a container at a pressure of 640.0 torr. Calculate the partial pressure of carbon monoxide in torr.
If we inject 120.0 mL of liquid helium and allow the entire system to warm to room temperature (25°C), what is the pressure inside the bottle
If the mass of the resulting mixture is 82.5 grams, what mass of oxygen was produced during the heating
to prepare a 13.9 kg dog (assume volume of 13.9 L) for surgery, 0.0343 moles of an anesthetic was administered intravenously. The reaction in which the anesthetic is metabolized displayed a first ha
Consider a reaction where 27.0 grams of mercuric oxide (a red solid compound) is heated and completely decomposes to give the elements oxygen and mercury. IF 2.0 grams of oxygen is produced by this
The density of water at room temperature is less than the assumed 1.0 g/mL used in the calculations for determining the enthalpy of neutralization. How will this small (but real) assumption affect t
The mixture is added to 130g of water. If the solution described in the introduction is cooled to 0 degrees celsius, what mass of KNO3 should be cystallize
The balance used to measure the mass of the metal reads low (for example, it reads 19.4 g instead of an actual 19.7 g). How will this error, due to miscalculation of the balance, affect the reported
Consider the reaction: CaCO3(s)===CaO(s)+CO2(g) An equilibrium mixture of this reaction at a certain temperature was found to have [CO2] = 0.478M. What is the value of the equilibrium constant at th
What is the purpose of a transducer and give a common example of one of these devices
The concepts of sensitivity and detection limit are often used interchangeably. Specify the difference between these two concepts.
What is the photoelectric effect, and what property of electromagnetic radiation does it help explain
Write an equilibrium expression for each chemical equation involving one or more solid or liquid reac- tants or products.
You have a certified "5 ppm Fe standard" that you obtained from NIST. By your method you measured it to be 4.8 ppm. Discuss your measurement precision
Measurement of a 4.05x10-4 M ASA standard solution at 275 nm was 0.579. Calculate the concentration of ASA in the solution
A calibration curve was prepared from series of standards for various concentrations of this analyte and the line of best fit was determined to be S=1.56C + 0.2, where, S, is the signal in mV and, C
The following reaction is a single-step, bimolecular reaction: When the concentrations of CH3Br and NaOH are both 0.115 M, the rate of the reaction is 0.0010 M/s.
The total pressure for a mixture of N2O4 and NO2 is 1.5 atm. If Kp=7.1 (at 25 degrees C) calculate the partial pressure of each gas in the mixture. 2NO2(g)<----->N2O4(g)
The total pressure at equilibrium is 190 mmHg and the compound is found to be 34% disassociated. What is the value of Kp
In your laboratory you're studying a chemical reaction that follows the general rate law: rate = k[A]. Initial experiments show a rate of 0.001412 M/s when [A] = 0.519 M at 299 K.
A reaction has a standard free-energy change of -12.60 kJ mol-1 (-3.011 kcal mol-1). Calculate the equilibrium constant for the reaction at 25 °C
A concentration cell is built based on the following half reaction by using two pieces of iron as electrodes (each weighing 100.0 g), two Fe3+ solutions, 0.149 M and 0.431 M (both exactly 1.00 L in
If yeast were supplied with glucose labelled with 14C at the C-1 position to produce ethanol and CO2 anaerobically, would the label appear in the CO2
After 70.82 minutes of surgery the drug began to lose its effect, but more surgery was required. How many moles of the anesthetic must be re-administered to restore the original level of the anesthe