. In a reaction, 5.3 g of sodium carbonate reacted with 6g of ethanoic acid. The products were 2.2 g of carbon di oxide, 0.9 g of water and 8.2 g of sodium ethanoate. Show that these observations are in agreement with the law of conservation of mass. Sodium carbonate +ethanoic acid-sodium ethanoate + carbon dioxide + water

Dilute ethanoic acid reacts with sodium carbonate.2CH 3 COOH + Na2 CO3 2CH 3 COONa + H2 O + CO2Calculate the volume, measured at r.t.p., of carbon dioxide produced, in cm 3 , when 3.18 g ofsodium carbonate reacts with excess dilute ethanoic acid.volume of carbon dioxide .................................................. cm3

5.00 dm3 of ethane reacts with 5.00 dm3 of oxygen according to the reaction below. Calculate the volume of carbon dioxide that is produced in the reaction.                   2C2H6(g) + 7O2(g) → 4CO2(g) + 6H2O(g)All gas volumes are measured under the same conditions of temperature and pressure.

Calculate mass of carbon dioxide (CO2) formed when 180 g of ethane (C2H6) is burned in excess of oxygen.C2H6(g) + 3.5O2 (g) → 2CO2 (g) + 3H2O(l)Select the correct option from below.528 g880 g264 g528I DON'T KNOWSUBMIT ANSWER

The law of conservation of mass states that:The mass of products is greater than the mass of reactantsThe mass of products is less than the mass of reactantsThe mass of products is equal to the mass of reactantsThe mass of products can be either greater than or less than the mass of reactants2How many grams of copper oxide are produced during the following reaction (assuming it is complete)?: 2Cu (6.35 g) + O2 (1.60 g) → 2CuO7.95 g4.75 g6.35 g15.9 g3In a chemical reaction, the mass of products is often lower than expected. There are several explanations for why this might be the case. Which of the following is not a possible explanation?Some of the reactants may have reacted in different unexpected waysThe mass of the reactants is greater than the mass of the productsThe reaction may not have finishedSome of the product may have been lost during removal4Which of the following is a balanced equation for the formation of water from hydrogen and oxygen?2H2 + O2 → H2O2H2 + 2O2 → 2H2O2H2 + O2 → 2H2OH2 + O2 → H2O25Which of the following is a balanced equation for the reaction of hydrogen and chlorine?H2 + Cl2 → HCl2H + 2Cl → 2HClH2 + Cl2 → 2HClH + Cl → HCl

Which of the following has maximum mass percentage ?A) 5 g of sodium carbonate is added to 95 g of water.B) 15 g of oxalic acid is present in 150 g of its aqueous solution.C) 10 g of sodium chloride is dissolved in 190 g of water.D) 25 g of potassium iodide is present 400 g of its aqueous solution.