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The methyl oleate starting material is a liquid at room temperature while the methyl stearate product is a solid. Explain the difference in melting points by referring to the structure and the available intermolecular forces between the two fatty acids.
Question 1: Using your results for Experiment 3, calculate the heat lost by the hot water. Heat must be expressed in kilojoules (kJ).
a buffer ph 3.70 was prepared by mixing 1.00 mole of formic acid and 1.00 mole of sodium formate to form an aqueous
Suppose a student creates a solution by dissolving 0.5095 g of a non-dissociating, non-volatile unknown solute in 15.58 g cyclohexane. The freezing point change is -2.0 Celsius. Calculate the number of moles of solute in the solution
A gas is compressed from initial volume of 5.60L to 1.23L by an external pressure of 1.00atm. During the compression the gas releases 128J of hear. What is the internal energy of the gas?
The isothermal compressibity of graphite is 1.56*10-7 bar-1. Explain at what pressure is the density equal to the density of diamond. Define at which locations on our planet would you find such pressures
Question- What mass of sucrose (342.30 g/mol) should be dissolved in 450.0 g of water to cause a boiling point elevation of 0.39 oC? Kb (water)= 0.512°C/m.
A sample of gas is collected over water at 14 degrees Celsius. The pressure of the resultant mixture is 113.0 kPa. What is the pressure exerted by the hydrogen alone?
Question- John titrates an unknown weak acid with 0.200 M KOH. At the equivalence point, the pH was 7.72 and John added 34.4 mL of base. When he had only added 17.2 mL of KOH, the pH was 3.58. What is the Ka of the weak acid
1) Use Coulomb's law to calculate the ionization energy in kJ/mol of an atom composed of a proton and an electron separated by 166.00pm 2) What wavelength of light would have sufficient energy to ionize the atom
at 25 c kc1.61024 for the reaction caosco2gcaco3s. use the value of kc to extimate by calculating the extent of this
1. Assume you have a max heap. Q1) Where in the heap largest element reside? Q2) Where in the heap smallest element reside?
Sufficient of a monoprotic acid is dissolved in water to produce a 0.0189 M solution. The ph of the resulting solution is 2.58. Compute the Ka for the acid.
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