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Write down a balanced equation for each of the following changes and identify whether heat is a product or required to start the reaction
Determine molar mass of the solute, assuming that the solution is ideal. The vapor pressure of water at this temperature is 3.7417 kPa. The vapor pressure of a solution which is having 13g of a non
The vapor pressure of a solution which is having the 13g of a non-volatile solute in the 100g of water at the 28deg C is 3.6492 kPa. Determine the molar mass of the solute, assuming that the solutio
Determine the maximum temperature of the solution after mixing? Suppose you mix 21.1 g of water at 66.2°C with the 45.2 g of water at35.7°C in an insulated cup.
The heat released by this reaction is sufficient to ignite paper. Explain how much heat is released when the 21.5 g of calcium oxide reacts? Calcium oxide reacts with the water to form the calcium
Determine the resulting total pressure in the third vessel. Suppose the temperature remains constant and the gasses behave ideally. A 10.0 L vessel contains gas X at a pressure of 300 torr.
4-Carbon disulfide is a colorless liquid. When pure, it is nearly odorless, but the commercial product smells vile. Determine the standard enthalpy change for this reaction using standard enthalpies
What would the equilibrium concentrations of HA,A-, H+, and OH- be if 0.100 mol of acetic acid were dissolved in the water to make 500.0mL of solution.
Determine the temperature of a two-level system of energy separation equivalent to 300 cm-1 when the population of the upper state is one-half that of the lower state.
At what temperature will 15 percent of the molecule be in the upper state? A certain molecule has a doubly degenerated excited state lying at360 cm-1 above the non-degenerated ground state.
How does this error affect the final temperature measured in the experiment (compared to the value that would be obtained without the error)? While using a coffee cup calorimeter in this experiment,
Describe how much heat is evolved in the combustion reaction? A particular natural gas consists, in mol percents, of 11.2% C2H6, 83.0%CH4 and 5.8%C3H8.
Determine the numbers of ml of 0.117 M AgNO3 solution would be needed to react exactly with the NaCl solution in the previous question.
Determine the partition function of these electronic states at 2000 K. Calculate the relative population of each level at 2000K.
Calculate the price ratio, Perrier/tap water if the Perrier water is available for $19.99 for a case of 24 1pt bottles. Tap water costs $0.00026 per liter.
Determine the numbers of 0.5 liter bottles of Perrier water would a man have to drink each day to get his minimum daily requirement of the magnesium?
If 0.228 g of this material is neutralized by 33.20 mL of NaOH, calculate the molar concentration of the NaOH solution? The concentration of basic solutions is often measured by titrating them agai
Determine the frequency separation of the nuclear spin levels of a14N nucleus in a magnetic field of 14.4T given that the magnetogyric ratio is1.93x10+7T-1s-1.
Determine the energies of the nuclear spin states in a magnetic field of 10.50T. 14N has a nuclear spin of 1 and a nuclear g-factor of0.404.
Iron which is having 30.0 g filings at a temperature of 80.0 C are mixed with the 40.0 g of water at a temperature of 22.0 C in a Styrofoam cup. Determine the specific heat of the iron when the res
When a sample which is having 9.00 g of metal is heated to 100.0 C, and dropped into the 20.0 mLs of water at the 25.00 C, the final temperature is 28.9 C.
Although we know the elements of one group have similar propriety from each other. So, why there are not any of hydrogen crystals ever? Explain why dose hydrogen hasn't the characterize of the meta
Poly (ethylene glycol) can be prepared from either ethylene glycol (alone) or ethyleneoxide (alone). Write a complete mechanism for both reactions and classify each one as being addition or condensa
Determine the numbers of moles of oxygen are required to react with the 1.6 moles of isopropyl alcohol, C3H7OH? Equation is 2 C3H7OH + 9 O2 --> 6 CO2 + 8 H2O
Authorities feared that dangerous air pollution might occur during the neutralization according to The Denver Post for April 4, 1983. Determine their major concern, considering the magnitu