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overall weight of a molecule = 23*2+12+16*3+10*18=286

weight of H2O per molecule =10*18=180

% H2O =(180/286)100=62.9

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Why only 10H2O in sodium carbonate deca hydrate?

Sodium carbonate decahydrate is the name of the compound Na2CO3·10H2O, because 'deca' means 'ten'.The term hydrated sodium carbonate is commonly used to encompass the monohydrate (Na2CO3·H2O), the decahydrate and the heptahydrate (Na2CO3·7H2O).Both the hepta- and the decahydrate are partially transformed into the monohydrate thermonatrite Na2CO3·H2O when left over in dry air.Anhydrous (no H2O) sodium carbonate (Na2CO3) is formed when heating Na2CO3·H2O or NaHCO3 or Na3H(CO3)2·2H2O (trona) up to 150o-200oC (this is called calcination).


What is the percentage of water in borax?

Borax is Na2B4O7·10H2O with a molecular weight of 318.37 g/mol. There are ten water molecules with net molecular weight of 180 g/mol. So the percentage of water = (180 * 100 / 318.37) = 56.56%


What is the effect of Na2CO3 on the pH of a solution?

Sodium carbonate (Na2CO3) is a basic compound that can increase the pH of a solution when dissolved in water. This means that adding Na2CO3 to a solution will make it more alkaline or basic.


When calculating the mass of borax needed to make up a standard solutiondo you ionclude 10h2o?

No, when calculating the mass of borax needed to make a standard solution, you do not include the water of hydration (such as the 10H2O). You only consider the anhydrous borax (without water molecules) in your calculations.


Acids are solution with an excess of ions?

CaCl2 (Calcium Chloride) 6H2O Na2SO4 (Sodium Sulfate) 10H2O Na2CO3 (Sodium Carbonate) 10H2O Na2HPO4 (Dibasic Sodium Orthophosphate) 12H2O Na2HPO4 (Dibasic Sodium Orthophosphate) 7H2O Na2S2O3 (Sodium Thiosulphate) 5H2O Ba(OH)2 (Barium Hydroxide) 8H2O

Related Questions

Write an equation that shows the dehydration of sodium carbonate decahydrate?

The equation for the dehydration of sodium carbonate decahydrate (washing soda) is: [ Na2CO3 · 10H2O \rightarrow Na2CO3 + 10H2O ]


Ionic compound formula sodium carbonate decahydrate?

The formula for sodium carbonate decahydrate is Na2CO3·10H2O.


What is the percent loss in weight on heating Na2CO3.10H2O?

When heating sodium carbonate decahydrate (Na2CO3·10H2O), it loses water molecules as it converts to anhydrous sodium carbonate (Na2CO3). The molecular weight of Na2CO3·10H2O is approximately 286 g/mol, while that of anhydrous Na2CO3 is about 106 g/mol. The weight lost due to the water is around 180 g/mol (from 10 moles of water), leading to a percent loss in weight of approximately 62.9%.


Why only 10H2O in sodium carbonate deca hydrate?

Sodium carbonate decahydrate is the name of the compound Na2CO3·10H2O, because 'deca' means 'ten'.The term hydrated sodium carbonate is commonly used to encompass the monohydrate (Na2CO3·H2O), the decahydrate and the heptahydrate (Na2CO3·7H2O).Both the hepta- and the decahydrate are partially transformed into the monohydrate thermonatrite Na2CO3·H2O when left over in dry air.Anhydrous (no H2O) sodium carbonate (Na2CO3) is formed when heating Na2CO3·H2O or NaHCO3 or Na3H(CO3)2·2H2O (trona) up to 150o-200oC (this is called calcination).


Is na2co3.10h2o wet or not?

Sodium carbonate decahydrate (Na2CO3 · 10H2O) is a crystalline solid that contains water molecules within its structure, making it a hydrate. In a sense, it can be considered "wet" due to the presence of water molecules.


What are the components of natron salt?

A mineral of hydrous sodium carbonate, Na2CO3·10H2O, often found crystallized with other salts.


What kind of compound is Na2CO3 x 10H2O?

Technically it is a mixture called a hydrate. This particular one is sodium carbonate decahydrate.


What is the molecular mass of washing soda?

mass of Na2CO3 with 10H2O of crystallisation is 286g


What is the correct name of the compound na2co310h20?

The correct name of the compound Na2CO3·10H2O is sodium carbonate decahydrate.


What is the percentage of water to the nearest tenth in this compound Na2CO3 x 10H2O?

there are 159.6g of cupric sulfate and 90.1g of waters63.5gCu+32.1gS+(16.0*4)gO=159.6gCuSO4 5(1.01*2)gH+5(16.0)gO=90.1g5H20 therefore, the gram formula mass is 249.7g the percent composition of water is 36.1%((90.1g)/(249.7g))*100% p.s.-my basic math skills suck so you may want to take the given values and crank them through the equation to check Your math is correct. I ran the problem myself and got the same answer. We even did this as a lab in Chemistry class and I got near the same answer (35% in an unregulated test).


What is the percentage of water in borax?

Borax is Na2B4O7·10H2O with a molecular weight of 318.37 g/mol. There are ten water molecules with net molecular weight of 180 g/mol. So the percentage of water = (180 * 100 / 318.37) = 56.56%


What is the name of this compound NaCO3 x 10H2O?

Sodium carbonate x water --> sodium carbonate (in solution)--> Sodium Carbonate Decahydrate