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What is calcium carbonate (caco3)commonly known as?
Calcium Carbonate (CaCO3) commonly known as Limestone, Marble, Chalk.
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What is calcium carbonate (caco3)commonly known as?
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0.84 g of metal carbonate reacts completely with 40 ml of H2SO4. What is equivalent weight of the metal-
Solution: weight of metal carbonate/GEW = NaXVa in lt 0.84/GEW = 0.5X40/1000 GEW of metal carbonate = 42 GEW of Metal = 42 - GEW of CO3-2 = 42-30 = 12g
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The formation of sodium chloride from gaseous sodium and gaseous chloride is a redox process. Justify.
Na atom get oxidize and Cl is reduced
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Potassium carbonate cannot be prepared by Solvay process. Why?
Solvay process cannot be used to prepare potassium carbonate. This is because unlike sodium bicarbonate,potassium bicarbonate is fairly soluble in water and does not precipitate out.
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Hard calcium carbonate structures are used as skeleton by (a) Echinodermata (b) Protochordata (c) Arthropoda (d) Nematoda
(a) Echinodermata
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Write down the formula of (i) sodium oxide (ii) aluminium chloride (iii) sodium suphide (iv) magnesium hydroxide
(i) Sodium oxide → Na2O (ii) Aluminium chloride → AlCl3 (iii) Sodium suphide → Na2S (iv) Magnesium hydroxide → Mg(OH)2
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In a reaction 5.3 g of sodium carbonate reacted with 6 g of ethanoic acid. The products were 2.2 g of carbon dioxide
In a reaction, sodium carbonate reacts with ethanoic acid to produce sodium ethanoate, carbondioxide, and water. Sodium + Ethanoic → Sodium + ...
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The difference in the mass of 100 moles each of sodium atoms and sodium ions is 5.48002 g. Compute the mass of an electron.
A sodium atom and ion, differ by one electron. For 100 moles each of sodium atoms and ions there would be a difference of 100 moles of electrons. Mass of 100...
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Why are cimetidine and ranitidine better antacids than sodium hydrogen carbonate or magnesium or aluminium hydroxide?
Antacids such as sodium hydrogen carbonate, magnesium hydroxide, and aluminium hydroxide work by neutralising the excess hydrochloric acid present in the stomach. However, the root cause for the release of...
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