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The pressure on a gas at -77 deg. C is doubled, but it's volume is held constant. What will the final temperature be in degrees C?
a gaseous system undergoes a change in temperature and volume. what is the entropy change for a particle in this system
calculate the value of delta s when 1.90 mol of rmch3 rmohl is vaporized at 64.7 circ rm
Calculate the pH of the solution resulting from the addition of 10.0 mL of 0.10 M NaOH to 50.0 mL of 0.10 M HCN
Did the. Temperature oof the water rise or fall when the nh4no3 was added? Explain this in terms of heat ttransfer.
Magnesium oxide (MgO) has the rock salt crystal structure and a density of 3.58 g/cm3. Determine the unit cell edge length.
The emission spectrum of an unknown element contains two lines-one in the visible portion of spectrum and the other
Suppose we doubled the volume of the solution (by adding more solvent) while keeping the quantities of the reactants constant in a SN1 reaction.
When 5.00g of copper reacts with oxygen, the copper oxide product has a mass of 5.62g. What is the empirical formula of this copper oxide? MM Cu= 63.5, O= 16.0
In the confirmation test that you performed for silver (I) ion, addition of nitric acid, HNO3, to a solution containing Ag+ produced the precipitate AgCl. Where did the chloride ion come from
The radioactive decay of Tl-206 to Pb-206 has a half-life of 4.20 min. Starting with 3.70 1022 atoms of Tl-206, calculate the number of such atoms left after 38.0 min.
A gas bottle contains .65 mol of gas at 730 Hg pressure. If the final pressure is 1.15 atm, how many moles of gas were added to the bottle?
If you place a drop of cyclohexane onto a drop of water that is located on a glass surface, what would happen to the hexane and the water
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