How many moles of naoh were added during the back titration
A student back-titrated the excess HCl with 41.53 milliliters of 0.365 M NaOH solution to a blue endpoint with bromophenol blue. How many moles of NaOH were added during the back titration?
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A 121 cm-long, 4 g string oscillates in its m = 3 mode with a frequency of 214 Hz and a maximum amplitude of 5.0 mm. What are the wavelength and the tension in the string?
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(a) What was the magnitude of the centripetal acceleration of the rock when it was on the string? (b) What was its speed when it was on the string?
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