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What is the percentage by mass of carbon in potassium carbonate?
Wiki User
∙ 6y ago
% K =2 x 39.1 x 100/ 138.2 =56.6
% C = 12 x 100/ 138.2 =8.68
% O = 3 x 16 x 100/ 138.2 =34.7
Potassium = 56.6 %
Wiki User
∙ 13y ago
Wiki User
∙ 6y agoThe percentage by mass of carbon in potassium carbonate is 8,695 %.
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What is the relative formula mass of potassium carbonate?
The relative formula mass of potassium carbonate (K2CO3) is 138.21 g/mol. This value is calculated by adding the atomic masses of each element in the compound: potassium (K) has a molar mass of 39.10 g/mol, carbon (C) has a molar mass of 12.01 g/mol, and oxygen (O) has a molar mass of 16.00 g/mol.
Why is the mass of copper carbonate lower after heating?
Heating copper carbonate causes it to decompose into copper oxide, carbon dioxide, and oxygen. When the carbon dioxide gas escapes, the overall mass of the compound decreases, resulting in a lower mass of copper carbonate after heating.
What mass of carbon dioxide is formed when 125g of zinc carbonate decomposes?
The chemical equation for the decomposition of zinc carbonate is ZnCO3 → ZnO + CO2. From the equation, we see that 1 mole of zinc carbonate produces 1 mole of carbon dioxide. Zinc carbonate has a molar mass of 125.4 g/mol and carbon dioxide has a molar mass of 44.01 g/mol. By using stoichiometry, we can calculate that 125g of zinc carbonate produces 44.01g of carbon dioxide.
Mixture was found to contain 1.05g of SiO2 0.69g of cellulose 1.82g of calcium carbonate. Calculate the percentage of calcium carbonate in the mixture x. Note round your answer to 2 significant figure?
To calculate the percentage of calcium carbonate in the mixture, first find the total mass of the mixture by summing the individual masses given (1.05g + 0.69g + 1.82g = 3.56g). Then, calculate the percentage of calcium carbonate by dividing the mass of calcium carbonate by the total mass and multiplying by 100 (1.82g / 3.56g * 100 ≈ 51%). So, the percentage of calcium carbonate in the mixture is approximately 51%.
What percent of carbon by mass in C17H19NO3?
The percentage of carbon is 71,58 %.
What is the relative formula mass of potassium carbonate?
The relative formula mass of potassium carbonate (K2CO3) is 138.21 g/mol. This value is calculated by adding the atomic masses of each element in the compound: potassium (K) has a molar mass of 39.10 g/mol, carbon (C) has a molar mass of 12.01 g/mol, and oxygen (O) has a molar mass of 16.00 g/mol.
What is the mass number of carbonate?
12 12.01
What is the percentage by mass of sodium (Na) in a formula unit of sodium hydrogen carbonate NaHCO3?
The percentage by mass of sodium (Na) in a formula unit of sodium hydrogen carbonate (NaHCO3) is 27,38 %.
What is the mass percent of nitrogen in ammonium carbonate (NH4)2CO3?
To calculate the mass percent of nitrogen in ammonium carbonate (NH4)2CO3, first find the molar mass of the compound: 2(N) + 8(H) + 1(C) + 3(O) = 96 g/mol. The molar mass of nitrogen in the compound is 2(N) = 28 g/mol. To find the mass percent of nitrogen, divide the molar mass of nitrogen by the molar mass of the compound and multiply by 100: (28 g/mol / 96 g/mol) x 100 = 29.2%.
What percent of carbon by mass in C17H19NO3?
The percentage of carbon is 71,58 %.
What mass of carbon dioxide is formed when 125g of zinc carbonate decomposes?
The chemical equation for the decomposition of zinc carbonate is ZnCO3 → ZnO + CO2. From the equation, we see that 1 mole of zinc carbonate produces 1 mole of carbon dioxide. Zinc carbonate has a molar mass of 125.4 g/mol and carbon dioxide has a molar mass of 44.01 g/mol. By using stoichiometry, we can calculate that 125g of zinc carbonate produces 44.01g of carbon dioxide.
How do you calculate the theoretical mass percentage of oxygen in potassium chlorate?
I believe it is: %O=mass of 3 mol of O / mass of 1 mol of potassium chlorate *100% If you measured it: %O=mass of oxygen lost / mass of potassium chlorate *100%
Role of potassium carbonate in sharpless assymetric dihydroxylation?
to keep the pH opf the reaction mass towards basic.
When a metal carbonate reacts with an acid carbon dioxide is always produced what factors might affect the volume of gas produced?
The mass of the carbonate used.
What is mass of calcium carbonate is to be decomposed to obtain 4.4 gram of carbon dioxide in the reaction caco3-cao plus o2?
To calculate the mass of calcium carbonate required to decompose and produce 4.4 grams of carbon dioxide, you need to first determine the molar mass of CaCO3 and CO2. Then, by using the stoichiometry of the reaction, you can calculate the amount of CaCO3 needed to produce 4.4 grams of CO2. The balanced reaction is: CaCO3 -> CaO + CO2.
What gives off more carbon dioxide when mixed with hydrochloric acid - chalk or marble?
Chalk gives off more carbon dioxide when mixed with hydrochloric acid compared to marble. This is because chalk is primarily composed of calcium carbonate, which reacts more vigorously with hydrochloric acid to release carbon dioxide gas. Marble also contains calcium carbonate, but its denser and more crystalline structure results in a slower reaction with the acid.
What is the percentage of carbon by mass present in isopentyl acetate?
Isopentyl acetate has a molecular formula of C7H14O2. Carbon has a molar mass of 12.01 g/mol, so the molar mass of carbon in isopentyl acetate is 7 × 12.01 g/mol = 84.07 g/mol. The molar mass of isopentyl acetate is 130.19 g/mol. Therefore, the percentage of carbon by mass in isopentyl acetate is (84.07 g/mol / 130.19 g/mol) × 100% ≈ 64.6%.
