35 Answered Questions for the topic Acid Base

02/08/16

Equation for carboxylic acids and their derivatives
Write an equation for the reaction of PCl5 with ethanoic acid:   and    How might testing pH followed by the reaction with PCl5 be useful in an analysis of an unknown organic compound?
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Acid Base Chemistry

12/07/15

Weak acid and base calculations
How many grams of ammonia must be added to water to make one leader of an ammonia solution with a pH of 11.81
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11/20/15

What is the effect of acidification of oceans on uptake of calcium carbonate for shelled organisms??
What is the effect of acidification of oceans on uptake of calcium carbonate for shelled organisms?
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11/20/15

Why does an acidic soil cause plants to take up more toxic minerals?
Use chemical equations to explain the answer.
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08/03/15

The balanced equation for the reaction between sodium oxide and water is
A. Na2O + H2O → 2NaOH B. Na2O + H2O → 2NaH + O2 C. Na2O + H2O → 2Na + H2O2 D. Na2O + H2O → 2Na + H2 +O2   How do I know which reaction will occur?
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08/03/15

Which of the following occurs when a few drops of HNO3 are now added to this system?
2 H+(aq) + 2 CrO4 -2(aq)(yellow) ->Cr2O7 -2(aq) + H2 O (orange) If a few drops of Pb(NO3 )2 solution are added to the equilibrium below, a yellow precipitate of PbCrO4(s) forms.   1) A ppt.... more
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08/03/15

An indicator HInd produces a yellow colour in 0.1 M HCl solution and a red colour in 0.1 M HCN solution. Therefore, the following equilibrium:
HCN + Ind- ? HInd + CN- A. Products are favored and the stronger acid is HInd B. Products are favored and the stronger acid is HCN C. Reactants are favored and the stronger acid is HIndD.... more
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08/03/15

At the equivalence point in a titration involving 1.0 M solutions, which of the following combinations would have the lowest conductivity
A. Nitric acid and barium hydroxide B. Acetic acid and sodium hydroxide C. Sulphuric acid and barium hydroxide D. Hydrochloric acid and sodium hydroxide   I dont understand why the answer is c
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06/09/15

find the concentration
1. what is the concentration of H+ ions in a 0.0356 M solution of hydriodic acid?   2. what is the concentration of H+ ions in a 0.0356 M solution of phosphoric acid?
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09/14/14

Problem solving
How much pure acid should be mixed with 6 gallons of 50% acid in order to get an 80% acid solution?
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