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How do you find molar mass of anhydrous sodium carbonate when given the molar mass of hydrated sodium carbonate?
Wiki User
∙ 7y ago
Add up the atomic masses of its constituent elements in their respective proportions, giving you a value of 105.988 g mol-1.
Wiki User
∙ 11y ago
Wiki User
∙ 9y agoThe relative mass of sodium carbonate is 106. The term decahydrate refers to 10 water molecules attached which has relative mass of 180. Therefore the relative mass of compound is 286.
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2
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2
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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
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2
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