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Osmotic pressure is often used to determine the molar mass of largemolecules; however, errors can be introduced into the calculationif the sample is not purified. Suppose that we have a solution of asubstance that has a molar mass of 1.00 × 105g/mol,but has a 0.100% by mass impurity that consists of a substance witha mass of 100.0 g/mol. What would be the apparent molar mass of the large molecule?
Consider the malate dehydrogenase reaction from the citric acid cycle. Given the following concentrations, calculate the free energy change for this reaction at 37.0 °C (310 K).
the label of an aerosol spray can contains a warning that the can should not be heated to over 130 degrees f because of
How much heat would be given off per mole of NaOH if 4.6g of NaOH dissolves to give off 755J of heat? b)How many grams of NaOH are needed to produce 88 kJ of heat
Given the reactant side of the total ionic equation for the neutralization reaction of potassium hydroxide KOH with hydrochloric acid HCl, write the total ionic equation (also known as the complete ionic equation) by entering both the reactant and..
Iron(II) chloride (melting point 677°C) and potassium chloride (melting point 776°C) form the compounds KFeCl3 and K2FeCl4 at elevated temperatures.
Draw the most stable contributing structure for the cyclohexadienyl anion formed by the reaction of methoxide ion with o-fluoronitrobenzene
assuming that radiation with 15.0 cm is used that all the energy is converted to heat and that 4.184 j is needed to
1. Write the equation for saponification of of glyceryl tripalmitate 2. Write equation for hydrogenation of glyceryl trioleate.
what is the theoretical yieldwhat is the theoretical yield of sodium thiosulfate pentahydrate when 3.25 g of sulfur is
5.0 g of H2O at 23.0 oC is added to 100.0 g of H2O at 67.5 oC. What is the temperature of the resulting mixture
How many grams of dry NH_4Cl need to be added to 1.60 of a 0.700 solution of ammonia, , to prepare a buffer solution that has a of 8.98. for ammonia is.
Calculate the molar enthalpy of combustion of cinnamaldehyde (delta H comb) (in kilojoules per mole of cinnamaldehyde).
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