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Consider a solvent whose molecular weight is 100.0 amu and whosevapor pressure at 25°C is 25.00 mm Hg. 100.0 g of a solutewhose molecular weight is 50.00 amu is dissolved in 1.000 kg ofthat solvent. The solute is not an electrolyte. The vapor pressureof the pure solute is 0.01 mm Hg at 25°C. What is the vaporpressure of the solution at 25°C?
the decomposition of solid ammonium carbonate to gaseous ammonia and carbon dioxide is an endothermic reaction. given
Although electromagnetic energy behaves as both waves and particles, this kind of wave-particle duality is not exhibited by matter.
Useful data might be: change in enthalpy of melting=6.0 kj/mol; change in enthalpy of vaporization=40.6 kj/mol; cp(h2O (liquid))=75.3 J/mol K; the density of ice is 0.917 g/cm^3 and the density of water is 1.00g/cm^3.
Calculate the pH of a buffer solution made by mixing 40.4 g of potassium formate into 1 L of a 0.09 M solution of formic acid. Give the pH to two decimal places.
The conversion of glucose into lactic acid drives the phosphorylation of 2 moles of ADP to ATP and has a deltaG= -135 kJ/mol. What is the deltaG for the conversion of glucose into lactic acid
Calculate the standard potential for this cell at 25 °C. Standard reduction potentials can be found here.
Give TWO possible reactions you could use in each case and write an equation for each reaction.
Determine how to make the following dilutions for aqueous Cu(NO3)2 from 1.0M stock : 0.50M. The 3 and 2 are both in subscript.
a buffer solution is prepred by adding 5.50g of ammonium chloride and 0.0188 mol of ammonia to enough water to make 155mL of solution a) What is the pH of the buffer
What is the formal charge on the indicated atom in each of the following species? sulfur in SO2 nitrogen in N2H4 each oxygen atom in ozone, O3
A solution is prepared by dissolving calcium chloride in water and diluting to 500.0 mL. If this solution contains 44 ppm chloride ions, the concentration of calcium ions is how many ppm
some diamonds appear yellow because they contain nitrogen compounds that absorb purple light of frequency 7.46 1014 hz.
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