How much na2edta x 2 h2o must be weighed
In order to prepare standard solution of EDTA, pure disodium EDTA dihydrate can be used as a primary standard. How much Na2EDTA x 2 H2O must be weighed to prepare exactly 2 L of 0.0500 M solution? FW=372.24
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The following volumes were pipetted into reaction flasks and mixed: 10.0 mL 0.0100 M KI, 10.0 mL 0.00100 M Na2S2O3, 20.0 mL 0.0400 M KBrO3, and 10.0 mL 0.100 M HCl. The mixture turned blue in 66.5 seconds. Calculate the concentrations of all react
Write a 700- to 1,050-word paper in which you examine and evaluate the creation of U.S. laws, taking into consideration common law heritage.& ;
Which is the correct mathematical expression for the molar solubility (x) in mol/L of Fe3(PO4)2?
How much energy in kilojoules is required to convert 100 mL of diethyl ether at its boiling point from liquid to vapor if its density is 0.7138 g/mL?
What was "Manifest Destiny" as a set of ideas? Did it cause historical events or was it merely a description of events? What were those events?
In the Grignard synthesis of Benzoic Acid, what is the weight of frost (ice) on the dry ice that will react with all of the phenyl Grignard reagent resulting in the production of no benzoic acid?
Water has vapor pressure of 23.8 torr at 25 degrees celsius. Find vapor pressure of water at 40 degrees celsius if delta H of vaporization is 40.7 KJ/mol.
Hypofluorous acid, HOF, is very unstable, decomposing in a first-order reaction to give HF and O2, with a half-life of 30. minutes at room temperature: HOF(g) ! HF(g) + 1⁄2 O2(g) If the partial pressure of HOF in a 1.00-L flask is initially
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