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At 55.0 degrees C, what is the vapor pressure of a solution prepared by dissolving 75.8 g of LiF in 259 g of water? The vapor pressure of water at 55.0 degrees C is 118 mmHg. Assume complete dissociation of the solute. Express the pressure numerically in millimeters of mercury.
Two 20.0-g ice cubes at -21.0 °C are placed into 235 g of water at 25.0 °C. Assuming no energy is transferred to or from the surroundings, calculate the final temperature of the water after all the ice melts.
Indicate the number of unpaired electrons for following: [noble gas]ns^2(n-2)f^6 ? Please include the rationale?
which of the following is not a representative particle?-atom-cation-anion-all of the
After the above reduction is complete, HCl is added to precipitate the crude product. What is the balanced equation showing this reaction. What impurities would be removed from the product upon washing it with ice-cold water
In a particular redox reaction, NO is oxidized to NO3- and Fe3 is reduced to Fe2 . Complete and balance the equation for this reaction in acidic solution. Phases are optional. NO + Fe^3+ ----->NO3^- + Fe^2+
If you know the answer please give units :) Part A: The reactant concentration in a zero-order reaction was 5.00×10^?2M after 140s and 3.00×10^?2M after 300s. What is the rate constant for this reaction? -> For this I got that 1.25x10^-4M/s, whic..
Calculate how much energy in the form of heat is available from 100mL of this mixture and compare it with the amount available from pure gasoline
Consider that sodium hydroxide is added to acetic acid (CH3COOH). What is the direction of equilibrium and by how much. Pka of Sodium Hydroxide
A gas measures 180. ml. at 870C and 800. mm Hg. Find its volume at standard temperature and 800 mm Hg of pressure.
how does the hammonds postulate explain?a. the greater selectivity for bromination vs. chlorination of an alkane?b. the
What are the possible values for the principal quantum number (n), the azimuthal quantum number (l) and the magnetic quantum number
Explain the following trends in lattice energy. (Select all that apply.) (a) NaCl > RbBr > CsBr CsBr is smaller than RbBr and NaCl. NaCl is smaller than RbBr and CsBr
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