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Presume you have 5.00 g of powdered magnesium metal 1.00 L of 2.00 M potassium nitrate solution and 1.00 L of 2.00 M silver nitrate solution.
(a) Explain which one of the solutions will react with the magnesium powder?
(b) Explain what is the net ionic equation that describes this reaction?
(c) Explain what volume of solution is needed to completely react with the magnesium?
(d) Explain what is the morality of the Mg 2+ ions in the resulting solution?
A gas pressure of 2.0 atm is in a closed container. Indicate the changes in its volume when the pressure undergoes the following changes at constant temperature: a) the pressure increases to 6.0 atm. b) the pressure drops to 1.0 atm. c) the pressu..
The complete combustion of 1.076g of C9H8O in a bomb calorimeter ( Cccalorimeter=3.895 kJ/ degree C) produced an increase in temperature of 11.21C. Calculate the molar enthalpy of combustion in kJ/mol.
You find a spool of pure copper wire while snooping through your brother's purse. The wire has a diameter of 0.3 millimeter and a length of 200 meters. A) Derive a formula for the resistance of the spool as a function of temperature.
Propose a reaction mechanism, including all appropriate arrows, to show how (S)?2?bromo?2? fluorobutane reacts to give (S)?2?fluoro?2?methoxybutane. Has this reaction gone with retention or inversion of configuration
The vapor pressure of an unknown compound at 25 degrees C is 94.6 Torr and its enthalpy of vaporization is 30811 J/mol. Estimate the normal boiling point of this compound. assume the enthalpy of vaporization is independent of temperature.
In a process called liposuction, a doctor removes some adipose tissue from a person's body. If the body fat has a density of 0.94 g/mL and 3 quarts of fat are removed, how many pounds of the fat were removed from the patient
An "empty" container is not really empty if it contains air. How many moles of nitrogen are in an "empty" two-liter cola bottle at atmospheric pressure and room temperature
How many grams of dry NH4Cl need to be added to 2.40 L of a 0.300 M solution of ammonia (NH3) to prepare a buffer solution that has a pH of 9.00? Kb for ammonia is 1.8e-5
Draw Lewis structures of the four molecules and/or ions with the formulas given below and figure out which two of these are isoelectronic with each another.
the critical temperature of the mixture is known to be 200 F. Compare your answer with the critical pressures of pure methane and pure n-hexane.
Enzymes are proteins possessing catalytic activity. Proteases are a class of enzymes that catalyze the hydrolysis (i.e., cleavage by the addition of water) of the peptide bonds linking amino acids in proteins according to the following reaction:
If 12.5 g of magnesium nitride is treated with water, what volume of ammonia gas would be collected at 28°C and 753 mm Hg?
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