Reference no: EM13522260
1. Define the following terms by means of an equation, or a definition.
a) Brønsted-Lowry acid
b) Brønsted-Lowry base
2. In the opening statement of this lab it is said that "Carbon dioxide, CO2, is the most important acid-producing compound in our atmosphere; rainwater is therefore naturally slightly acidic because of the dissolved carbon dioxide".
a) Show by means of an equation why carbon dioxide produces an acidic solution.
b) SO2 and NO2 are also acidic anhydrides. Write equations showing this behavior.
3. Predict the pH of the following 0.10 M solutions (neutral, acidic, or basic)
NaCl, KCN, NH4Br, NaHSO3
4. Identify the acid and base used in the preparation of the following salts.
KCN, SrBr2
5. You are asked to prepare a solution of a particular salt that has a pH 8.3 (your choices are KCN, NH4Cl, KNO2, or BaCl2.). What molarity of which salt should you choose? (Hint: look up the ionization constant)
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Explain what is the length of a side of the unit cell
: Assume that the aluminum atoms can be represented as spheres, as shown in the drawing (Part C figure) . If each atom has a radius of 1.43 , what is the length of a side of the unit cell
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Define the standard free energy change dgo
: The temperature is 2200 oC inside the lightning bolt, the bolt lasts long enough for all three species to reach equilibrium at that temperature, and the pressure of NO is 0.001 atm at equilibrium. Calculate the standard free energy change ΔGo for ..
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Prepare the journal entry for organic growth at january
: Prepare the journal entry for Organic Growth at January 2, 2012, assuming Organic Growth estimates returns of 20% based on prior experience.
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Draw the reaction product
: Draw the reaction product(s) formed by the bromination of (z)-stilbene, designate all product sterocenters accurately and label all sterocenters in the final product(s)
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Explain the dissolved carbon dioxide
: In the opening statement of this lab it is said that "Carbon dioxide, CO2, is the most important acid-producing compound in our atmosphere; rainwater is therefore naturally slightly acidic because of the dissolved carbon dioxide".
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Identify alternative revenue recognition criteria
: Identify alternative revenue recognition criteria that Uddin could employ concerning textbook sales - briefly discuss the reasoning
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Explain a solution gave a precipitate when ammonium oxalate
: A solution gave a precipitate when ammonium oxalate was added but gave no precipitate when ammonium sulfate was added. For each Magnesium group ion(Barium, Magnesium, Strontium, and Calcium) tell whether the ion
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Relationship between atomic radius and ionization energy
: What is the relationship between atomic radius and ionization energy.
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Find how many moles of gas are in the bag
: A large closed bag of plastic contains 0.10 m3 of an unknown gas at an initial temperature of 10°C and at the same pressure as the surrounding atmosphere, 1.0 atm. How many moles of gas are in the bag
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