Determine the experimental vant hoff factor
Question: The freezing-point depression of a 0.100 m (molality) MgSO4 solution is 0.225 degrees Celsius. Determine the experimental van't Hoff factor of MgSO4 at this concentration.
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A 15.6 mL sample of a 0.387 M aqueous hydrocyanic acid solution is titrated with a 0.346 M aqueous barium hydroxide solution. What is the pH at the start of the titration, before any barium hydroxide has been added
As water is warmed, the solubility of sugar crystals in it *increases *decreases *remains constant *Fluctuates randomly
Complete combustion of methane When methane () burns, it reacts withoxygen gas to produce carbon dioxide and water. The unbalancedequation for this reaction is This type of reaction is referred to as a complete combustionreaction. PART A What coef
Discuss how one could tell the difference between first order, second order and zero order reactions by graphing the reactant concentration in some way vs time.
Question: If one starts with pure NO2(g) at a pressure of 0.500 atm, the total pressure inside the reaction vessel when 2NO2(g) ----> 2NO(g) + O2(g) reaches equilibrium is 0.674 atm. Calculate the equilibrium partial pressure of NO2.
(Calculate using the given masses.) lighter isotope amu heavier isotope amu (c) Determine the average molecular mass of a Br2 molecule. amu (d) Determine the average atomic mass of a bromine atom. amu (e) Calculate the abundances of the two isotop
A solution of 0.640 g of azulene in 100.0 g of benzene boils at 80.23oC. The boiling point of benzene is 80.10oC; the Kb is 2.53 oC/molal.
Why must we know both in order to explain the physical properties of the molecule. physical properties to be considered are solubility and the points when the molecule changes states
Select the correct IUPAC name for the following organic substrate, including the R or S designation where appropriate, and draw the major organic product(s) for the SN1 reaction.
Assume that the heat lost by the surface is gained by ethyl chloride. What enthalpies must you consider if you were to calculate the final temperature of the surface?
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