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Calculate the pH of a solution made from 10.0mL of 0.10M HCL, 20.0mL of 0.050M NaOH, and 30.0 mL of 0.20 M NaCl. Ka for HAc (if needed)=1.8x10^-5
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A hydrogen atom emits a photon as its electron changes from n = 5 to n = 2. For the H atom, E n = -2.18E-18*(1/n 2 ) J. What is the wavelength (in m) of the photon? ( ) m The number of significant digits is set to 3; t ...
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