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Explain why the bond between boron and Cl in the molecule BCl3 is shorter than would be expected from a single B-Cl bond.
A buffer with a pH of 4.06 contains 0.23 M of sodium benzoate and 0.32 M of benzoic acid. What is the concentration of [H ] in the solution after the addition of 0.054 mol of HCl to a final volume of 1.4 L?
What is the function of a chemical indicator. (is the answer the function is to determine if a sample solution is a base or an acid?) Why is water considered neutral
you have 250ml of a 0.80 m solution of silver nitrate agno3 169.87 gmol dissolved in water. how many grams of agno3
Calculate the energy required to keep lightbulb burning for 3 hours in each of the energy units of Joules and Kilocalories
Consider the titration of 100.0 mL of 0.100 M H2NNH2 (Kb = 3.0 10-6) by 0.200 M HNO3. Calculate the pH of the resulting solution after the following volumes of HNO3 have been added.
Is caffeine a stronger acid or a stronger base than amides. Is caffeine a stronger acid or a stronger base than water. And why.
The molar enthapy of fusion for water is 6.008 kJ/mol. calculate the molar enthapy of vaporization of a substance if 0.652 mol of the substance absorbes 6.411 kJ when it melts.
Write the reactions for the preparation of the diaonuim salt for the coupling of the salt with the sodium salt of 2-napthol.
a student placed in an unknown sample plate thin layer chromatography and develops in dichloromethane as solvent. only there is a spot whose Rf is 0.95. This indicates that the unknown material is a pure compound
name the four general types of carbonyl reactions. give an example of each including a detailed mechaism. use a propyl group next to a carbonyl in each example.
If an audiotape playing at a speed of 1.875 in. s -1 takes 45.0 min to play through one side, what is the length of the tape in feet. in meters.
A solution is prepared by mixing 5.00 g of compound Z (molar mass 15.00 g/mol) in 100.0 ml of water. The density of the solution is 1.09 g/ml. Calculate the molarity of the solution.
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