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The volume of 1.00 mol of ammonia gas at 1.15 atm of pressure is gradually decreased from 90.5 mL to 34.9 mL. What is the final pressure of ammonia if there is no change in temperature?
the density of liquid water at 0 degrees c is 0.9987 gcm cubed the density of ice at this same temperature is 0.917 gcm
What is the total number of liters of O2(g) produced from the complete decomposition of 0.500 mole of KClO3(s)?
A quantity of oxygen occupies a volme of 19.2L at STP. How moles of oxygen are present?
Determine the new pressure of the gas and express your answer in Pa
If 15 mL of a 1 M HCl solution is mixed with 25 mL of a .250 M NaOH solution in a process that produces 273 mg of NaCl, what is the percent yield
A 2.154 g sample of HgO produces 125 mL of oxygen gas. The gas is collected over water at 24 C and an atmospheric pressure of 763 torr.
the weak base methylamine is titrated with 0.10 M HNO3. Calculate the pH after 20.0 mL and 60.0 mL acid addition (HNO3).
Explain why should apparatus always be clamped securely to a metal ring stand before starting a chemical reaction
How long does it take for the radioactive isotope to decay to 4.9×10?3 mg? (Assume no excretion of the nuclide from the body.)
write ground-state electron configurations for these ions, which play important roles in biochemical processes in our bodies. (Use a noble gas core abbreviation) Na^+, Mg^2+ Cl^- K^+
The paint formerly used on some storage tanks contained aluminum powder, which reflected heat from the surface of the tanks. Why did experts recommend grounding these tanks and storing only noncombustible material in them
A J tube is filled with air at 22C and 760 Torr. The long arm is closed off at the top and is 100 cm long. The short arm is 40 cm. Mercury is poured into the short arm with a funnel. What is the pressure on the air when Hg starts to spill out.
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