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freezing point of Pure 2-methyl-2propanol is noted 25.50C, however it absorbs H2O as an impurity on exposure to humid air. determine how many milligrams of H2O are present in sample If the freezing point of a 100.0g sample of 2-methyl-2-propanol =24.59C? Kf=(2methyl-2propanol=4.68Ckg/mol)
Explain how hydrodewaxing, hydrocracking and hydroisomeriztion processing take place In base oil refining and also describe how aromatics (low volatile products) are converted to high quality base oil.
Find the volume of a gas inside a cylinder - What will be the resulting volume of this gas?
Determine how many significant figures are there in the Fahrenheit result when 7.02C converted to Fahrenheit scale,?
Complexometric titration and stoichiometry - How many grams of chloride ion were present in sample
Determine what is element Y if you have a compound consists of element "Y" and H, only and know that it is 79.89% element Y by mass. Each molecule has 3.00 times as many H atoms as Y atoms?
Compute the number of moles of H2O will be formed from the reaction 75.1g benzene?
Compute the number of moles of sodium hydroxide ( NaOH ) in 23.75cm 3 of 0.150moldm -3
Using a sample of water with a mass of 46.0 grams at a temperature of -58. Degree Celsius calculates how many Joules of energy (E) are necessary to heat the ice to 0 degree Celsius. Specific heat of ice= 2.1 J/g C).
Determine the equilibrium concentrations - what are the new equilibrium concentrations of all species.
Calculate what quantity of potassium chlorate that has molecular weight of 122.5 needed to form 33.6 litres of oxygen? Express your answer in grams and assume that temperature and pressue will be in normal condition?
The state function to describe a particle on a sphere is given as Ψ=2sin^2(?)+cos?(θ).calculate the expectation value of its angular momentum about the z-axis, energy and the square of the total angular momentum L^2.
At 25 degree celcius ,the second order reaction NOCL(g) - NO (g) + 1/2 CL2 (g) is 50 % complete after 5.82 hours when the initial concentration of Nitrosyl chloride is 4.46 ml/L.what time will it take for the reaction to be 75 % complete.
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