what is 1=1 pls tell me
Answers
Some pH data for either reagent or pharmaceutical grade KCl aq. sol. according to several suppliers:
Thermo Fisher Scientific, 50g/L, pH = 6 at 20 ºC (SDS: 7 Aug. 2009, rev. 15 Feb. 2019, 6 pp.); YSI, trade name: KCl-250, article nº 109 705Y, 3 mol/l, pH = 6.2 at 20 ºC (SDS: 27.07.2015, rev. 27.07.2015, 5 pp.); Metrohm AG, 3 mol/L, pH 5.5―8.5 at 20 °C (MSDS: vs. 2013-02-13, 8.106.7241EN, dm/TS/fpe, 3 pp); SWAN Analytische Instrumente AG, trade name: 'filling solution 3.5M' (product nº A-87.893.300, A-87.893.500, A-87.893.600), 3.5 M, pH = 7 (SDS: 2019-03-18, vs. 3.0, 8 pp.); Columbus Chemical Industries Inc. (CCI), product nº 9285, 3 M ('electrode filling solution'), pH = 5.0―7.0 at 20°C (SDS: rev. 09/06/2016, 5 pp.); ASTRAZENECA PTY LTD (Australia), ref. PH4098, 7.5―15 % (for injection), pH = 5.5―7 (SDS: rev. 16.12.2014, vs. 1.0, 5 pp.).
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Answer:
1=1
Step-by-step explanation: