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Consider a buffer solution made from a partially neutralizing 1.00 M hydrochlorious acid (HClO, Ka=3.5*10^-8) with 0.500M sodium hydroxide.
A) Calculate the amount of base needed to make a buffer from 50.0mL of HClO with a pH equal to the pKa of the acid.
B) What is the pH of a buffer solution made in (a) after diluting to 500mL.
C) Which solution made in (a) or (b) will have a lower capacity if equal volumes of each are compared? Why ?
D) Calculate the pH of a buffer made using 30.0mL of the acid and 10.0mL of the base.
E) Calculate the pH of a buffer using 20.0ml of acid and 30.0mL of base.
F) Which solution made in (d) or (e) can buffer more acid ? Which can buffer more base? Why?
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The densities of both gases are the same The masses of both gases are the same The number of molecules of both gases are the same Both the masses and the densities are the same
A solution of 75.0 of benzene and 75.0 of toluene has a total vapor pressure of 80.9 at 303 . Another solution of 100.0 benzene and 50.0 toluene has a total vapor pressure of 93.9 at this temperature.
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What is an ion of an element ?
1. for the following reactionnbspfe2o3 3 h2 -gt 2 fe 3 h2onbspif 6.3 g of fe2o3 is reacted with 15.8 g of hydrogen to
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Predict the outcome of the following reactions represented by the following equations by using the activity series, and balance the equations.
A saturated solution of magnesium hydroxide in equilibrium with undissolved solid is prepared at 25C. The pH of the solution is 11.03. Calculate the value of the Ksp
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