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Use the solubility graphs in the chapter to determine the mass of ammonium chloride that can dissolve in 20g of water at 50°C.
The delta G for the freezing of at -10 C is -210 J/mo and the heat of fusion of ice at this temperature is 5610 J/mol. Find the entropy change of the universe when 3 mol of water freezes at -10 C.
From the following list of compounds figure out which one exhibits the pattern of the m/z values shown- 41, 43, 57, 87, 101, 116
When the following reaction is balanced in basic solution using the lowest possible whole number coefficients, the coefficient of H2O will be: H2O2(aq) + ClO2(aq) --> ClO2-(aq) + O2(g)
Calculate the vapor pressure of water above this solution at 338 K. The vapor pressure of pure water at this temperature is 0.2467 atm
What is the approximate pH of a solution of the salt NH4(O2CCH3) (ammonium acetate)? No calculations -- only reasoning needed. pKa/pKb values in your notes
calculate the apparent degree of dissociation of the nh4cl if the freezing point of this solution is -15.3oc?molal
If 25.0 mL of 0.451 M NaOH solution is titrated with 0.253 M H2SO4, identify the principal components (ions, molecules) in the flask at the endpoint besides solvent water or indicator.
What mass of NaCl is needed to react with 35.0 mL of the same AgNO3 solution?
show example of a standardization of a base naoh using primary standard khp show an
A solution is made by dissolving 0.45 moles of LiCl to make 150 mL of aqueous solution. What is the molarity of the solution?
Utilizing Ionization energies, compute the left over kinetic energy of the ejected 1S electron when one is dislodged by one energetic X-Ray photon.
If one strand of a DNA double helix has the sequence TCGAGTCCGG. what is the sequence of the other DNA strand?
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