Question

Please help me with questions 7-12.Thanks

Part 1: Observations, Data and Calculations 1. In the table, describe your observations when the different solutes were dissolved in tap water and when vinegar was added into the solution. (2 marks) Table 1: Solubility and reactivity Solute Solubility in water Reactivity with vinegar Baking soda Sugar Salt 2. (1.5 marks) Write a chemical equation to represent what you observed when you added each solute to water. 3. (0.5 mark) Write a chemical equation for the solute(s) that reacted with the vinegar. What type of chemical reaction does it represent? 6. (0.5 mark) Classify the type of reaction that occurs between calcium carbonate and acetic acid. 7. (1 mark) Based on the quantities of the two reagents mixed, which one is the limiting reagent? Show clear calculations that lead you to this conclusion. 8. (1 mark) Is there a mass loss as soon as the reaction is completed? Based on what you know about the law of conservation of mass, justify your answer. 9. (1 mark) Suppose the starting materials given to you were calcium hydroxide and acetic acid in excess. What would be different when you observe this reaction? Write the balanced equation to help justify your answer. 10. (0.5 mark) After air-drying the reaction mixture for several days, which of the excess reactants and products do you expect to remain in the beaker? 11.(1 mark) Does the mass of the air-dried product agree with your answers to Prelab Question 2 and Lab Report Question 6? If not, how can you account for the mass lost or excess mass? 12. (2 marks) How many millilitres of 6 M hydrochloric acid are required to react exactly with (a) 2 g of calcium carbonate, and (b) 2 g of sodium hydrogen carbonate? Show your calculations, including the relevant balanced chemical equations.