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solution containig (3.3)gm na2co3 .h2o in (15ml)

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โˆ™ 2012-12-23 18:31:45
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Q: Standardization of hcl solution with primary standard na2co3 solution?
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Why is Na2Co3 a primary standard solution?

na2co3 is primary standard,because,molarity remains same with time,and it is of high molecular weight


What is the Frame structure of Serial Line Internet Protocol?

Preparation of standard solution and standardization of hydrochloric acid Objective : To prepare a standard solution of sodium carbonate and use it to standardize a given solution of dilute hydrochloric acid. Introduction : Anhydrous sodium carbonate is a suitable chemical for preparing a standard solution (as a primary standard). The molarity of the given hydrochloric acid can be found by titrating it against the standard sodium carbonate solution prepared. The equation for the complete neutralization of sodium carbonate with dilute hydrochloric acid is Na2CO3(aq) + 2HCl(aq) → 2NaCl(aq) + CO2(g) + H2O(l) The end-point is marked by using methyl orange as indicator. Chemicals :solid sodium carbonate, 0.1 M hydrochloric acid


What is the nature of aqueous solution of Na2CO3?

It is a basic (alkaline) solution.


What is the pH of Na2CO3?

The pH of sodium carbonate solution is about 11.


How many moles of Na2CO3 are there in 10.0 L of 2.0 M soluton?

Molarity = moles of solute/Liters of solution Or, for our purposes, Moles of solute = Liters of solution * Molarity Moles Na2CO3 = 10.0 Liters * 2.0 M = 20 moles Na2CO3 --------------------------


Nature of aqeous solution of Na2CO3?

Sodium carbonate is dissociated in water.


Equation for the addition of sodium carbonate solution to copper sulphate solution?

==>Na2CO3 + CuSO4 Na2SO4 + CuCO3


What the formula for sodium carbonate solution?

The chemical formula of sodium carbonate is Na2CO3. A solution hasn't a formula.


What happens when you mixed the magnesium chloride solution with the sodium cabonate solution?

MgCl2 + Na2CO3 = 2NaCl + MgCO3


When 2.61 of solid Na2CO3 is dissolved is sufficient water to make 250 mL of solution the concentration of Na2CO3 is?

You need to mention the unit for 2,61.


How do you prepare 250ml 15m solution of naco3 in a volumetric flask do presume a solvent ie h20 but then you have to presume volumes and conc and because 15M wanted you cant use the flask to dilute?

Did you mean 250 mL of 0.15 M Na2CO3? (It's impossible to make a 15 M Na2CO3 solution, as Na2CO3 is not that soluble.) Yes, you can assume that this will be an aqueous solution. Steps. 1. Calculate the mass of solid Na2CO3 needed. 2. Place this mass of Na2CO3 in the volumetric flask. 3. Add some water and swirl to dissolve the Na2CO3. 4. Carefully add more water until the total volume of solution is 250 mL, as indicated by the line etched on the neck of the volumetric flask. 250 mL x 1 L x 0.15 mol Na2CO3 x 105.99 g Na2CO3 = 4.0 g Na2CO3 needed ........... 1000 mL ......... 1 L ..................1 mol Na2CO3


Why Na2CO3 is added to solution before Benedicts test is performed?

Sodium carbonate is added with the purpose to increase the pH of the solution.

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