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Sep 01, 2009 · The Principle of this test is to dilute the acid and find the titrate volume of known molarity of NaOH required to neutralize the Acid dilution. The reaction is follows: ACID (aq) + ALKALI (s) --- > SALT (aq) + WATER (l) H2SO4 (aq) + 2NaOH (aq) --- > Na2SO4 (aq) + 2H2O (l) Mar 13, 2020 · How long does it take to get test results? It can vary by lab, but in general, you can expect to hear back within 48 hours, Dr. Fernando says. We might see the turnaround time for results decrease ... Standard acid tests for gold and platinum are based on the fact that they will not react with pure nitric acid but they will react to aqua regia, which is a They are also capable of identifying the metals used to make the gold, platinum and silver alloys. The process is fast and non-destructive, but slightly less...