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  • Lenovo Thinkpad Edge - Trackpad Issue?

    My trackpad is not tracking the mouse at all. Nothing. It scrolls with the red button and the Pg Up/Down work, but I can't move the mouse because it's frozen in position. It works occasionally if I use a feather-light touch - but again only occasionally. This is super frustrating, especially since I just got it for Christmas. Does anyone have suggestions or ideas for fixing it?

    1 AnswerLaptops & Notebooks9 years ago

  • Hypochlorous acid, HClO, has a pKa of 7.54.?

    What are pH, [H3O+], [ClO-] and [HClO] in 0.147 M HClO?

    I tried using ICE (initial, change, equilibrium). I came up with [HClO]= .147-x= .00276 which was wrong. All the other things I tried, relating to the ICE formula were also wrong.

    Chemistry1 decade ago

  • How do I determine the Ksp when all I have is ∆H°f, ∆G°f, and S°?

    This is what I'm asked for:

    Use Appendix B to determine the Ksp of CaF2.

    This is the information I'm given:

    ∆H°f (kJ/mol) = -1215

    ∆G°f (kJ/mol) = -1162

    S° (J/mol K) = 68.87

    1 AnswerChemistry1 decade ago