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A sample of gas occupies a volume of 459 mL at 0.736 atm and 29 degrees Celsius. Calculate the volume of the gas if its pressure is changed to 0.957 atm while its temperature is held constant.
A beaker with 100 mL of an acetic acid buffer with a pH of 5.00 is sitting on a benchtop. The total molarity of acid and conjugate base in this buffer is 0.100 M . A student adds 6.50 mL of a 0.260 M HCl solution to the beaker. How much will the p..
How much energy in kJ is needed to heat 5.00g of ice from -10.0oC to 30.0oC? The heat of fusion of water is 6.01 kJ/mol and the molar heat capacity is 36.6 J/(oK.mol) for ice and 75.3 J/(oK.mol) for liquid water.
Calculate the correct volume of sulfuric acid which will need to be added to neurallize the base. The chemical reaction involves Al(OH)3 and Fe2O3 reacting with KOH and H2SO4 with the end product being KAL(SO4)2*12H2O.
The compound ZnI4 is best described as anions in a face-centered cubic unit cell with the cations in the tetrahedral holes. What is the density of this compound?
Starting with the previous noble gas, write the condensed ground-state electron configuration of an atom of the following elements.
a experiment would also work using another reactive metal such as zinc.If you had used the same number of grams of Zn as you did Al in this experiment,would you have obtained more or less hydrogen. Illustrate with an equation and calculation
Polonium crystallizes in a simple cubic lattice (the Po atoms are at the lattice points only). If the density of the metal is 9.31 g/cm3, what is the unit cell edge length in pm
Electronic spectroscopy makes transitions between electronic states, as well as vibrational (and rotational) states. Explain why no general vibrational-state selection rule exists for electronic transitions.
what is the pH of an aqueous solution prepared by dissolving 0370 moles of formic acid (HCO2H) and .230 moles of sodium formate (NaCO2H) in 1.00L of water
A hydrocarbon is a compound that contains mostly carbon and hydrogen. Calculate the percent composition (by mass) of the following hydrocarbon
the solubility of kno3 is 155g per 100g of water at 75c and 38.0g at 25c. what mass of kno3 will crystallize out of the
When 3.41 g of P4 is burned, 86.1 kJ of thermal energy is evolved at constant pressure. What is the molar enthalpy of combustion of P4?
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