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A balloon expands isothermally from 1.0 L to 10.0 L next to a constant external pressure of 7.0 atm. the work done by the system is:
A. -63L.atm.
B. +63 L.atm.
C. -70 L.atm.
D.+ 70 L.atm.
E. Cannot be calculated.
the vapor pressure of dichloromethanech2cl2 at 0 degrees c is 134 mmhg. the normal boiling point of dichloromethane is
The first four ionization energies of an element X are 0.58, 1.82, 2.74, and 11.58 MJ/mol. What is the most likely formula for a stable ion of X
Assuming the density of a 5% acetic acid solution is 1.0 g/ml, determine the volume of the acetic acid solution necessary to neutralize 25.0 ml of .10M NaOH. Also record this calculation on your report sheet.
A copper wire (density = 8.96 g/cm3) has a diameter of 0.39 mm. If a sample of this copper wire has a mass of 43 g, how long is the wire?
draw an orbital picture for acetylene C2H2 label each bond type and indicate type of orbitals involved in each bond.
Calculate the number of milliliters of stomach acid neutralized by 1 tablespoon of milk of magnesia (1 tablespoon = 3 teaspoons).
Compute the pressure (in atmospheres) Using the van der Waals equation, exerted by water(H2O) of 23.93 grams at 36.11 degree celsius in a 1.00 Litre container.
An inflated balloon has a volume of 0.55 L at sea level (1 atm) and is allowed to rise to a height of 6.6 km, where the pressure is about 0.40 atm.
Choose the selection which gives the correct number of and bonds present in one molecule or ion of perchlorate ion, ClO4-. Make the central atom in your Lewis structure follow the octet rule if possible.
According to the Vsepr theory which one of the following species should be linear, What is the approximate bond angle for H2O?
n2g 3 h2g harr2nh3gstarting with initial concentrations of 0.400 m and .600 mconcentrations of nitrogen and hydrgon
Compute and then plot the concentration of oxygen each day for a period of five days starting with a concentration of 8 mg/L. Utilize a rate constant of 0.35 d-1.
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