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Calculate the osmotic pressure of a magnesium citrate laxative solution containing 30.0 g of magnesium citrate in 251 mL of solution at 37 degrees C. (approximate body temperature). Assume complete dissociation of the ionic compound.
Determine the mass of the steel bar if the final temperature of the system is twenty one degree Celsius?
making ice cream involves surrounding the ice cream canister with a bath of salted ice water. to get the mix to freeze
Find the temp (in K) above which a reaction with a delta H of 123.0 kj/mol and a delta S of 90.0 J/k*mol becomes spontaneous.
Nitrogen from a gaseous phase is to be diffused into pure iron at 675 C. If the surface concentration is maintained at 0.2 % N, what will be the concentration 2 mm from the surface after 25 h? The diffusion coefficient for nitrogen in iron at 675 ..
for the isoelectronic series vco6- crco6 and mnco6 would you expect the energy of metal to ligand charge-transfer bands
If the cuvettes are not wiped clean in an experiment, fingerprint smudges may be present during analysis. Explain how this error would affect the absorbance readings for blue dye in the analysis
describe why benzoic acid and 4-nitroaniline must be air dried for such a long time or placed in an oven before taking a final mass and finding the melting point
a gas is enclosed in a cylinder fitted with a piston. the volume of the gas is 2.00 l at 1.00 atm pressure. the piston
When HCl is added to 1,3-butadiene either 3-chloro-1-butene or 1-chloro-2-butene forms. Which product is more stable? Explain. b) Explain why at low temperatures, e.g. -80oC, when HCl is added to 1,3-butadiene the major product is 3-chloro-1-but..
How many atoms are contained in a block of aluminum metal measuring 6 mm x 8 mm x 18 mm. The density of aluminum is 2.7 g/cm3.
An electron in the ground-state He+ ion undergoes a transition to a state described by the wavefunction R4,1(r)Y1,1(?,). (a) Describe the transition using term symbols. (b) Compute the wavelength, frequency, and wavenumber of the transition.
When 0.170 g of the hydrate CaCl2•xH2O is heated, 0.128 grams of anhydrous CaCl2 remains. What is the value of x in the formula for the hydrate
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