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Benzene is a organic solvent with the formula, C6H6. it boils at 80.1C and melts at 5.5 C. benzene's density is 0.88gm/ml, its heat of fussion is 10.0 K joules per mole.calculate the following:
A. The volume occupaied by 1 gigamole of liquid benzene at 25C
B. The volume occupied by 1 nanomole of Benzene as vapor at STP (assume an ideal gas)
a gas has a volume of 5.80 l at o degrees c. what final temperature in degrees celsius is needed to cause the volume of
Phosphate systems form essential buffers in organisms. Calculate the pH of a buffer made by dissolving 0.80mol of NaOH in 0.50L of 1.0M H3PO4.
Propane burns in oxygen to produce carbon dioxide and water. c3h8 +5o2 yeilds 3co2 +4h2o Calculate the math of co2 that can be produced if reaction of 44g of propane and suficient oxygen has a 60% yeild.
The heat of solution of LiBr is -48.8kJ/mol. if 4.82 g of LiBr is dissolved in 100.0 g of water in a calorimeeter at 19.8 C, what temperature will be reached? Neglect the heat capacity of the calorimeter and the contribution of the LiBr to the mas..
How much heat (in ) is required to warm 12.0 of ice, initially at -12.0, to steam at 114.0? The heat capacity of ice is 2.09 and that of steam is 2.01 .
A buffer is 0.282 M C6H5COOH (aq) and 0.282 M NA(C6H5COO)(aq). Calculate the pH after the addition of 0.150 moles of nitric acid to 1.0 L of the buffer.
a gasoline additive used to boost octane ratings, delta H f has = -313.6 kJ/mol. C5H12O (l) + 15/2 O2 (g) ---> 5Co2 (g) + 6 H2O (l) Calculate its standard heat of combustion in kilojoules.
Calculate the mass of I2 produced at the anode if a current of 2.85 A is passed through a solution of KI for 56 minutes.
A disk has a moment of inertia 3.0 x 10-4 kg. m2 and rotates with an angular speedof 3.5 rad/sec. What net torque must be applied to bring it to rest within 3 s
column of air with a pressure of 1.57 *10^5 Pa and an area of 1.15 m^2 and given that the acceleration due to gravity is 9.8 m/s^2, what is the mass of this column?
Given that a sample of air is made up of nitrogen, oxygen and argon in the mole fractions 78% N2, 21% O2 and 1.0% Ar, what is the density of air at sandard temperature and pressure?
Persistent Organic Pollutanants- Bioaccumulation Measurements, Compare the worst case scenario, i.e. the strongest tendency to bioaccumulation for each toxin.
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