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Identify the compound(s) that act as acid(s) in the following equilibrium:
NH4+ (aq) + CN- (aq) NH3 (aq) + HCN (aq)
During a breath, the average human lung expands by about 0.50L. If this expansion occurs against an external pressure of 1.0 atm, how much work in J is done during the expansion?
Hydrogen gas is contained in a one-liter vessel at "STP"(0 degrees Celsius and 1 Std. Atm.). Flourine gas is contained in a second one-liter vessel at the same conditions of temperature and pressure.
Suppose that N2 gas may be described as van der waals gas. This gas (n=1.25 mol) is expanded isothermally and reversibly from a volume of 1 liter to 10 liters at 300K
How much energy (in Joules) is required to heat 10.99 g of water from 12.9 Celsius to 42.4 Celsius?
Sulfur-38 has an atomic mass of 38.0 and a half life of 2.87 hours. How long will it take for 99.99% of a sample of sulfur-38 to decay
The international unit for weighing diamonds and determine the volume of a 0.76 carat diamond if The density of diamond is given=3.51 g/cm3 ?express your answer in units of cm3
What is the rate law and rate constant for the decomposition of HF at 25 degrees Celcius
Calculate the number of collisions required to slow a neutron from an energy of 2.85 MeV to a thermal energy of 0.025 eV, using a moderator with an average logarithmic energy decrement of .955.
The atmospheric pressur on Pluto is 3 microbars. Express this pressure in bars, kPa, atm, and torr.
For carbon tetrachloride, the boiling point constant is 5.03°C · kg/mol, and the boiling point of pure carbon tetrachloride is 76.50°C.
Name an element in the fourth period of the periodic table with a total of 4 4p electrons. Name an element in the fourth period of the periodic table with a total of 3 3d electrons Name an element in the fourth period of the periodic table with a ..
If an aqueous solution containing Pb^2+ ions is electrolyzed using a current of 0.900 amps, calculate the mass of Pb(s) plated out after 50 minutes.
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