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Molar mass of calcium carbonate/calcium valence = 50,04345
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How the equivalent weight of calcium phosphate be calculated?
equivalent weight of calcium phosphate
Why all the hardness of water is expressed in terms of Calcium carbonate?
because its molecular weight is 100.....
Why does calcium carbonate lose mass if heated?
Limestone loses mass when heated because of a chemical change: the gas carbon dioxide (CO2) is released by a chemical process when the rock is heated. The heat turns some of the calcium carbonate of the limestone into calcium oxide (quicklime) and carbon dioxide.
How calcium stearate is prepared?
Calcium Stearate is prepared by melting stearic acid and adding the stochiometric equivalent weight of calcium hydroxide (hydrated lime). The liquid is then mixed until the reaction is completed. It is usually then spray dried into a powder.
If you have molecular weight how can you find equivalent weight?
Equivalent weight ofc11h17n3os2 from molecular weight271.402
What is equivalent weight of calcium carbonate?
E.W= Molecular weight / # of ions = 100.09 (mg/mmol) /2 (meq/mmol) =50.043 mg/meq
How the equivalent weight of calcium phosphate be calculated?
equivalent weight of calcium phosphate
How much does dolomite weight?
Dolomite is a type of carbonate material that is made up of calcium magnesium carbonate. The weight of dolomite depends on how big the chunk is that you're looking at.
How do you determine the percentage of calcium carbonate when it is combined with sodium bicarbonate?
1. Weight a sample (m1) of approx. 5 g from the mixture and put in a beaker.2. Add approx. 50 mL water and stir vigourously.3. Transfer quantitatively the suspension on a preweighed sintered glass filter (m2).4. Calcium carbonate being insoluble in water remain on the filter.5. Dry the filter at 110 0C and weigh (m3).6. Calculate the weight of CaCO3: m4 = m3 -m2.7. Calculate the percentage of calcium carbonate: m5 = (m4 x 100)/m1.
What is the equivalent weight of calcium chloride?
55
Why all the hardness of water is expressed in terms of Calcium carbonate?
because its molecular weight is 100.....
Why has calcium carbonate lost weight after heating?
Because it has decomposed to carbon dioxide and calcium oxide, and the carbon dioxide is gaseous, has dispersed into the natural atmosphere, and therefore is no longer part of the weight.
What do your bones needs to stay strong?
They need a good blood supply, calcium and to be mechanically stressed by movements of the body and by bearing weight.
Is calcium carbonate used in soaps manufacturing industry?
yes it is also used in order to increase the weight of the soap
How to calculate equivalent weight of phosphorus pentoxide?
140.944
How can we make a solution of sodium carbonate?
Take water in a beaker. Add sodium carbonate to it and stir till sodium carbonate dissolves. However for scientific or any practical purpose, take a fixed weight of sodium carbonate and dissolve in a definite volume of water and calculate the concentration in terms of molarity or weight per volume etc.
What is the heated balanced formula for calcium carbonate?
CaCO3(s) ==heat==> CaO(s)+CO2(g) The correct chemical expression you need is NOT 'heated' , but 'Thermal Decomposition'. Calcium carbonate when heated to about 900 oC ( red glowing heat) will undergo thermal decomposition , to form calcium oxide((quick)lime) and carbon dioxide. Visually, you don't see anything. Calcium carbonate is white in coliur as is Calcium Oxide. You do not see carbon dioxide being given off. The only way to check is by weighing the mass of calcium carbonate. Heat it. Re-weigh when cool. It shoulk be of less weight. The difference being the mass of CO2 liberated, which you cannot weigh.
