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How many moles of sodium hypobromite should be added to 1.00 of 5.0×10-2 hypobromous acid to form a buffer solution of = 9.15? Assume that no volume change occurs when the is added.
Express the concentration of a .0560 M aqueous solution of flouride, F-, in mass percentage and in parts per million. Assume the density of the solution is 1.00g/mL.
A 5.0 g sample of a hydrate of BaCl2 was heated, and only 4.3 g of the anhydrous salt remained. What percentage of water was in the hydrate?
The volume of HI(aq) required to reach the equivalence point : (c) The pH at the half-neutralization point. d)The pH at the equivalence point
When halogens react they tend to gain electrons rather than lose electrons. Pick the best two reasons why this occurs.
What percentage of the Sr-90 that was formed in the detonation of the first fission bombs in August 1945 is still present in the environment in August 2094
If another sample of the same compound is decomposed and found to contain 8.46 g of oxygen, how many g of carbon must it contain?
A 0.0100 molal aqueous solution of a weak acid freezes at -0.0205 oC. Calculate the percent ionization of the weak acid, HA.
The wavelength of light emitted if the electron drops from n=5 to n=4 will be shorter than the wavelength of light emitted when the electron falls from n=5 to n=3.
suppose that 1.15 g of rubbing alcohol (C3H8O) evaporates from a 65.0 g aluminum block. If the aluminum block is initially at 25 C, what is the final temperature of the block after the evaporation of the alcohol?
Some AgCl(s) has been placed in a beaker of water. After some time, the solubility of Ag+ and Cl- was measured to be 2.5 x 10-5 M. Using Calculations, determine whether the system has reached equilibrium.
Can copper ions be transferred in galvanic cell with platinum bar. why or why not? please provide a detailed explanation
a 100 g sample of water at 23C is added to a 45 g sample of water at 99C. what is the final temperature of the sample
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