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Use the Rydberg equation to calculate the wavelength in nanometers of the spectral line of hydrogen for which n2 = 4 and n1 = 2.
Report your answer to four (4) significant figures.
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A solution of hydrochloric acid has a volume of 250. mL and a pH of 1.92. Exactly 250. mL on 0.0105 M NaOH is added. What is the pH of the resulting solution?
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Do you notice any trends or can you make any generalizations about where certain types of liquids fall on the pH scale?
Diagonal relationship and anomalous behaviour of the each element of the periodic table
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