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A lithium salt used in lubricating grease has the formula LiCnH2n+1O2. The salt is solublein water to the extent of 0.036g per 100.0g of water at 25C. The osmotic pressure of the solution is found to be 57.1 torr. Assuming the molality and molarity for such a dilute solutionare is the sameand that the lithium salt is completely dissociated in the solution, calculate an appropriate value for n in the formula for salt.
a 35.00 ml solution of 0.2500 m hf is titrated with a standardized 0.1356 m solution of naoh at 25 c.a what is the ph
At 25C, what is the hydroxide ion concentration, [OH-], in an aqueous solution with a hydrogen ion concentration of [H+]=2.7 x 10 ^ -6 M
The activation energy of a reaction is the difference between the energy states of reactants and the products
What volume of glacial aceic acid (18M) and what weight of sodium acetate trihyddrate(CH3COONa.3H20) are required to make 100 ml of .2 M buffer at pH 4.5 (pKa of acetic acid is 4.74). please explain steps in detail and use units in asnwer
the ha monoprotic acid is dissolved in h2o calculate ka and pka for the acid ha if the equilibrium concentrations of
TLC plate that is then developedi n a 1:1 hexane/ethyl acetate solution the solvent front is measured at 6.5 cm and the distance traveled by caffeine is measured at 2.15 cm. What can be determined about the identity of compound X in light of this ..
Explain why it is necessary to remove the Erlenmyer flask from the hot water bath at the moment the volatil liquid disappears
Calculate the standard free-energy change for the following reaction at 25 degrees C. 2Au^3+(aq) + 3 Cr(s) 2Au(s) + 3Cr^2+(aq) delta G^degree= ? KJ/mol
How much heat (in kJ) is required to warm 16.0g of ice, initially at -11.0 C, to steam at 112.0 C? The heat capacity of ice is 2.09 J/g*C and that of steam is 2.01 J/g*C.
Propane, C3H8, is widely used in liquid form as a fuel for barbecue grills and camp stoves. Given 97.5 g propane, calculate the mass (grams) of carbon it contains.
Compare and contrast the accuracy and precision of at least three types of measurements used in life
Acetic acid is a monoprotic acid and thus the reaction stoichiometry is 1:1. that is one mole of sodium hydroxide will neutralize one mole of acetic acid.
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