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what is the standard reaction enthalpy for which the equilibrium constant is doubled when the temperature is increased
calculate the ph of a solution formed by mixing 1000ml of 20 m hclo with 2000 ml of 30 m kclo the ka for hclo is
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write balanced molecular total ionic and net ionic equations for the reaction of aqueous copper ii sulfate and aqueous
an aerosol can has an internal pressure of 385atm at 25 degrees celsius what temperature is required to raise the
a hot-air balloon has a volume of 875l what is the original temperature of the balloon if its volume changes to 955l
calculate the molarity of a solution made by dissolving 0140 mol na2so4 in enough water to form exactly 800ml of
write a balanced chemical equation showing the formation of the salt na3po4 from the reaction of the appropriate strong
1 what are the sources of crude oil and some of its components2 why is cracking an important technological process3
1 mole of liquid water at 0degc and 1 atm pressure is irreversibly converted into steam at 200degc and 3 atm assume the
a copper storage tank containing dilute h2so4 at ph 01 is blanketed with hydrogen at 1 atm calculate the maximum cu2
zn is immersed in a solution of cucl2 what is the reaction and at what activity ratio of zn2 cu 2 will the reaction
the emf of a cell made of a zn anode and hydrogen cathode immersed in 05m zncl2 is 0590v what is the ph of the
what is the ph of a solution formed by dissolving 0100 mol of an acid with a ka of 1750x10 to the -5th and 0200 mol of
start with a liquid labeled 2000ml hcl aq you are able to reach equilibrium at ph 7000 through titration by adding 1425
a 20 l-reaction flask initially contains 017 mol co 015 mol h2 and 010 mol ch3oh methanol if this mixture is brought in
a vessel originally contained 0240 mol iodine monobromide ibr 00016 mol i2 and 00014 mol br2i2g br2g 2 ibrgthe
an understanding of le chateliers principle is fundemental to the study of chemistry and helps us to understand
use le chateliers principle to explain why the buffer prevents large changes from occuring in ph wheni an acid enters
the osmotic pressure of a saturated solution of strontium sulfate at 25 c is 21 torr what is the solubility product of
at body temperature 37 c ka for aspirin equals 3 x10 - 5if two aspirin tablets each having a mass of 325 mg are
the solubility product for znoh2 is 30x10- 16 the formation constant for the hydroxo complex znoh4 2- is 46x 1017awhat
how many microliters of 1000 m naoh solution must be added to 2500 ml of a 01000 m solution of lactic acid hc3h5o3 to
find the ph during the titration of 2000 ml of 01350 m benzoic acid c6h5cooh ka 63 multiplied by 10-5 with 01350 m
what is the buffer-component ratio pr - hpr of a propanoate buffer that has a ph of 557 ka of hpr 13 multiplied by