Collection of useful Resources for HSC Students | AceHSC

Pool chlorine or hydrochloric acid is added to achieve a suitable pH. ... Use log 10 (log base ten) on the calculator, NOT the natural logarithm (log e or ln) ... Borax (Na 2 B 4 O 7.10H 2 O) Other common acids/bases are unsuitable, as they don’t fit the above criteria. HCl is efflorescent. ................
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