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A sample of NH3 gas that takes place a volume of 23.0 L at 10.0oC is heated at constant pressure until it fills a container with a volume of 50.0 L. What is the final temperature in oC for this gas?
1.-143oC2. 21.7oC
3.130oC
4.342oC
5. 615oc
Calculate the standard enthalpy of formation of liquid water (H2O) using the following thermochemical information
what was the mass (g) of molecular oxygen from the air that combined with the substance to produce the dense gas? B. What is the ratio of the weight of oxygen burned to the weight of the dense gas produced?
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.
A human piece of pottery is dated 16750 years old by using carbon-14. how many half lives have passed since the pottery was made?
A 4.60 g nugget of pure gold absorbed 288 J of heat. What was the final temperature of the gold if the initial temperature was 26.0°C? The specific heat of gold is 0.129 J/(g·°C).
what is the easiest way to convert grams to grams in chemistry?example calculate the number of grams of kcl that can be
Draw additional molecules of sulfanilamide and hypothesize the intermolecular interactions that are most important for providing a stable and selective crystal structure
Draw a concentration cell for 0.10 M Cu2+ and 2.0 M Cu2+ cell, show the following on each compartment clearly. All the component of each cell, including the concentrations in anode and cathode half cells
For atomic iodine, determine the degeneracy (which arises from the spin multiplicity) of the first two electronic states. Both are derived from the same S-L term symbol, using spin-orbit (J) coupling. The second state lies 7580 cm-1 above the firs..
A solution is prepared by dissolving 19.9 g ammonium sulfate in enough water to make 100.0 mL of stock solution. A 15.00 mL sample of this stock solution is added to 59.00 mL of water.
Vanadium metal crystallizes in a body centerd cubic crystal lattice. The length of a unit is 0.305nm. Calculate the density of vanadium in g/cm^3
A sample of Nitrogen gas expands in volume fro 1.6 L to 5.4 L at constant temperature. Calculate the work done (in joules) if the gas expands
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