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Phenolphthalein has a pKa of 9.7. It is colorless in its acid form and pink in its basic form. For each of the pH's listed, calculate the ratio and predict the color of a phenolphthalein solution.
a. pH = 2.0
b. pH = 5.0
c. pH = 8.0
d. pH = 11.0
What volume in milliliters of a 0.5 solution of copper ll sulfate, CuSO4, is needed to react with an excess of aluminum to provide 11g of copper?
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What is the minimum temperature required to convert all but 0.040 of to products by 4:00 p.m.?
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At a given temperature, 1.40 atm of H2 and 2.03 atm of I2 are mixed and allowed to come to equilibrium. The equilibrium pressure of HI is found to be 1.305 atm. Calculate Kp for the reaction at this temperature.
How many atoms are there in 0.663 moles of water?
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