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When 4.7g of a salt with a formula mass of 100g/mol is dissolved in 513g of water 609 cal of heat are evolved. When 10.6g of the salt are dissolved in 493g of water 1143 cal of heat are evolved. Calculate the differential heat of solution of this salt at 1.5 molal. Why does the integral heat of solution at infinite dilution equal the differential heat of solution at zero molality? Why would the slope of a plot of the integral heat of solution versus molality approach zero as the molality approaches zero?
The equilibrium concentration of HA will be less than the stoichiometric concentration because some or all of HA ionizes.
how many kilojoules of heat are released when 42.4 g of ch3oh at 55 degree celsius is cooled to 15.5 degree celsius.
consider a .7 L of a buffer composed of 0.4 M HClO and 0.5 NaClO? How many moles of strong base could this buffer withstand?
A mixture of KClO3 and KCl with a mass of 0.950 g was heated to produce O2. After heating, the mass of residue was 0.700 g. Assuming all the KClO3 decomposed to KCl and O2, calculate the mass percent KClO3 in the original mixture.
Explain Oxidation of Elements and Their Reactions, Which element is oxidized and which element is reduced in each of the following reactions?
calculate the molecular mass of the nonionic solutes. 8.02 grams of solute in 8.61 grams of water lower the freezing point to -0.430 degress celcius.
a/A sample containing anthracene dissolved in methane was separated using gas chromatography on a column with mobile phase (Vm) and stationary phase (Vs) volumes of 24 mL and 9.4 mL, respectively. For this particular column, anthracene has a r..
the intermediate(s) structure and reaction conditions, They are multistep so if you could please explain the route you chose
Two substances, A and B, initially at different temperatures, come into contact and reach thermal equilibrium. The mass of substance A is 6.05g and its initial temperature is 20.9?C
For 300.0 mL of a buffer solution that is 0.325M in CH3CH2NH2 and 0.300 in CH3CH2NH3CL, calculate the initial and the final after adding 0.005 mol of NaOH.
explain why if benzoic acid were substituted for 2-methoxyphenylacetic acid in this experiment the enantiomeric ratio
what is the concentration of solute particles or ions in moll present in 1 l of the following aqueous solutions? assume
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