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If the freezing point depression of water is -1.86 degrees C/M, what would be the freezing point of this solution?
Consider a 15.0 mL sample of a ternary mixture composed of 25% (by volume) octane, 35% chloroform and 40% 2-propanol. Use the following information to convert volume composition to molar composition:
how many grams of ice will still be present when the contents of the pitcher reach final temperaturethe tea is mostly water so assume that it has the same density (1g/mL), molar mass, heat capacity (75.3J/K/mol), and heat of fusion(6 kJ/mol) as pu..
calculate the pressure of the dimer when the total pressure is .725 atm at equilibrium. 2ch3cooh(g) (ch3cooh)2(g) Monomer Dimer
If a buffer solution is 0.440 M in a weak acid (Ka = 1.0 × 10-6) and 0.230 M in its conjugate base, what is the pH?
A sample of pure NO2 is heated to 388C at which temperature it partially dissociates according to the equation.
calculate the external pressure that must be applied to seawater, 1.14 M total ion concentration at 10 degrees celcius if the maximum concentration allowed in the product water
What is the total number of moles of electrons transferred in this reaction: 2 C7H16O + 21 O2 = 16 H2O + 14 CO2? What is the oxidation and reduction pathway?
Calculate the velocity of a nucleus given that it has 4 neutrons, 4 protons, a wavelength
what is the pH of the benzoic acid solution prior to adding sodium benzoate? B. how many grams of sodium benzoate should be added to prepare the buffer? neglect the small volume change that occurs when the sodium benzoate is added.
Nitrogen reacts with hydrogen according to the following equation.
When 0.78 g of an unknown gas in contained solely in a 560 mL container, the pressure is 780 Torr at 5 degrees Celcius. What is the molar mass of the gas in grams/mole?
What is the M concentration in octanol? (b) pH= 8.00 what is the M concentration in water? what is the M concentration in octanol?
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