Se añaden 0.03 moles de acetato de sodio a 1 litro de disolución 0.020 M de HCl. Calcula el pH de la disolución resultante.
Dato:
A spring is producing waves with a frequency of 4 Hz and a wavelength 0.5 m. What is its velocity? What will be its wavelength if the frequency is doubled? What will be its wavelength if the frequency is reduced to half?
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