concentrations of HCI(aq) reacting with CaCo,(s) d. Does the data above prove or disprove your hypothesis? Back up your answer with an example from Table 1. (1:2, C:1) e. What would happen to the rate of the reaction if the temperature were decreased? Give reasons for your answer (A:3)
When HCl(aq) is added to calclum carbonate solid, carbon dioxide gas, liquid water and aqueous calcium chloride form: Caco,(s) + 2HCI(aq) - CO,lg) • CaCl, faq) + H,00) This reaction is used by geologists to confirm the presence of limestone (calcium carbonate) in minerals. In this experiment you are trying to determine the effect of concentration of HCI(aq) on the production of carbon dioxide. a. Based upon the information above, come up with a question to answer. (C:1) You can use the following equipment to answer this question: calcium carbonate chips, 1.90 molL HClaq). pH meter (measures hydrogen ion concentration), beaker, timer, apparatus to measure gas produced b. Based upon the equipment provided above, design a procedure to answer your question. Ensure you provide numbered steps. (1:3, C:2) c. Hypothesize an answer to your question. (I:1) Give reasons for your hypothesis. Ensure you are very specific. (A3) From your experiment, you collect the following data: Reactant Concentration Trial Reactant (mol/L) Product Product Concentration (mol/L) HCl(aq) 0.5 CO2g) 0.25 HCI(aq) 1 Co2(g) 0.5 HCl(aq) 13 co2(g) 1 2 Table 1: Amount of CO,lg) produced in 1 minute from 3 different concentrations of HCI(aq) reacting with CaCo,(s) d. Does the data above prove or disprove your hypothesis? Back up your answer with an example from Table 1. (1:2, C:1) e. What would happen to the
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