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A tank of hydrogen has a volume of 22.9 L and holds 14.0 mol at 12.0 C, what is the pressure of the gas in atm
A mass of 47.5 g of H2O(s) at 273 K is dropped into 225 g of H2O(l) at 298 K in an insulated container at1 bar of pressure. Calculate the temperature of the system once equilibrium has been reached.
If 2.3g of sodium reacted with 1.8 of water, what would be the total mass of sodium hydroxide and hydrogen produced?
For the isoelectronic series[V(CO)6]-, Cr(CO)6, and [Mn(Co)6]+, does the energy of the metal to ligand charge-transfer bands increase or decrease with increasing charge on the complex? Why?
How many moles of Na2SO3 were added to the calorimeter cup if 30.0mL 0.50 M NaOCl and 70.0mL 0.50 M Na2SO3 were combined?
How much energy (in calories) is needed to heat 12cm^3 of fat from room temperature (25C ) to its melting point (35C)? Specific heat of fat 0.45 cal/(g*C, and the density of fat is .94g/cm^3)
A 1.630 g sample of naphthalene, C10H8(s), is completely burned in a bomb calorimeter assembly and a temperature increase of 8.44°C is noted.
What is the density of a block of marble that occupies 350 cm3 and has a mass of 660 g?Answer in units of g/cm
A phosphorous acid buffer needs to be prepared to a pH of 5.92; given a 120mL solution of 25mM phosphorous acid, how many milliliters of either 0.5M KOH or 0.4M HCl will need to be added
Find the reaction order using a Powell plot or the fractional-life method and also estimate the rate constant
How much energy would be required to melt 26 g of HCl at its melting point of -110.8 ?C?
Three sparingly soluble salts, MA, MA2, and MA3, all have Ksp = 1.5 x 10-7. Determine which of these three has the highest molar solubility in water? a) MA, b) MA2, c) MA3 ,d) They are all equally insoluble.
Calculate the entropy change that occurs when 3.5 moles of an ideal gas expands from 1.75 L at 20 degress Celsius to 8.46 L at .54 atm.
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