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-- card: 3749 from stack: in.1 -- bmap block id: 0 -- flags: 4000 -- background id: 3161 -- name: Firstbuffer ----- HyperTalk script ----- on openCard set the lockText of field "BufferInfo" to true set the visible of field "helptext" to false put line 1 of field BufferInfo into field Name end openCard -- part contents for background part 30 ----- text ----- Sodium phosphate (pKa2) pKa is 7.2 dpK/dT is -0.0028 charge on acid species is -1 made from NaH2PO4.2H2O Mol.wt. is 156.01 Shortname is NaPi Notes: Use NaOH to adjust pH -- part contents for background part 11 ----- text ----- Sodium phosphate (pKa2) -- part contents for background part 43 ----- text ----- 700 -- part contents for background part 31 ----- text ----- 0 0.4918 1 0.492466 2 0.493143 3 0.493829 4 0.494525 5 0.495231 6 0.495947 7 0.496674 8 0.49741 9 0.498156 10 0.498911 11 0.499677 12 0.500453 13 0.501239 14 0.502035 15 0.50284 16 0.503656 17 0.504482 18 0.505317 19 0.506163 20 0.507018 21 0.507883 22 0.508759 23 0.509644 24 0.510539 25 0.511444 26 0.512359 27 0.513285 28 0.51422 29 0.515165 30 0.516119 31 0.517084 32 0.518059 33 0.519044 34 0.520039 35 0.521043 36 0.522058 37 0.523083 38 0.524117 39 0.525162 40 0.526216 41 0.52728 42 0.528355 43 0.529439 44 0.530533 45 0.531637 46 0.532752 47 0.533876 48 0.53501 49 0.536154 50 0.537307 51 0.538471 52 0.539645 53 0.540829 54 0.542023 55 0.543226 56 0.54444 57 0.545664 58 0.546897 59 0.548141 60 0.549394 -- part contents for background part 15 ----- text ----- 45 -- part contents for background part 59 ----- text ----- 24 -- part contents for background part 14 ----- text ----- .02 -- part contents for background part 12 ----- text ----- 7.6 -- part contents for background part 61 ----- text ----- Sorry - there's not much help in this stack. Just fill in the field with reasonable values, for any buffer in the stack -to add new buffers click on "Edit buffers". The stack does a fair bit of range checking and so should intercept most simple errors. Rob -- part contents for background part 13 ----- text ----- .3 -- part contents for background part 10 ----- text ----- Buffer recipe Monday, November 13, 1989 Buffer : .02M Sodium phosphate (pKa2) pH 7.6 at T=45 °C pH: 7.660 at lab temperature of 24 °C pH: 7.6 T: 45°C pKa: 7.2, pKa': 6.669 (dpKa/dT: -0.0028) I: .3 (Maintained with 0.244M KCl to I= 0.244) Notes: Use NaOH to adjust pH 1. Dissolve 2.184g NaH2PO4.2H2O and 12.735g KCl in ~560.000 ml double distilled water. 2. Titrate to pH 7.660 with monobasic acid or alkali. 3. Make up to 700mls