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Pure Ag melts at 961.8 degC and boils at 2162 degC. The heat of fusion for Ag is 11.28kJ per mol and the heat of vaporization is250.6kJ per mol.Calculate the entropy change for Ag from 961.7 degC to 2162.1degC.
1.90-g sample of a large biomolecule was dissolved in 23.0 g of carbon tetrachloride. The boiling point of this solution was determined to be 77.85°C. Calculate the molar mass of the biomolecule.
Titration of metal ion with EDTA. using the spreadsheet equation 11-11 to compute the curves (pM versys mL of EDTA added) for the titration of 10 mL of 1.00 mM M2+ (=Cd 2+ or Cu2+) with 10.0 mM EDTA at pH 5.00. Plot both curves on one graph.
You made up a saturated solution of calcium sulfate(CaSO4). The Temperature is 25 degreescelcius. You then add 5.00 X 10-3 M sodium sulfate(Na2SO4). What are the concentrationsof calcium and sulfate after equilibrium is reached
Calculate the pH during the titration of 30.00 mL of 0.1000 M KOH with 0.1000 M HBr after 30.26 mL of the acid
thermodynamic tables and charts may be used when both H and S are tabulated. since G=H-TS , at constant temperature , deltaG=RT LOG(f2/f1)= delta H- t*deltaS
in the formula sodium phosphate na3po4 how many moles of sodium are represented? how many moles of phosphorus? how many
ow many stereo-isomers would there be if a molecule had four chiral centres, Rank the different carbocations in order of their stability.
A cube made of Pt has an edge length of 1.0 cm cubed. b) The spherical Pt atoms in the cube cannot fill all of the available space. Only 74% of the space in the cube is taken up by Pt atoms, what is the radius in picometers of the Pt atom
Vapor Pressure due to water at 24oC: 22.4 torr For the conditions listed above, calculate the volume of O2(g) produced at standard conditions of temperature and pressure.
To whats volume in liters must 105 mL of hydrochloric acid containing 47.5g of HCl be diluted to make a 1.05M solution ?
Draw the structure for the molecule that fits the following description and then name it according to IUPAC formalism. a constitutional isomer of decane
A solution of 0.95 g of a compound in 120 g of cyclohexane has a freezing point of 6.08 degree celsius. what are the molality of the solution and molar mass of the solute.
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