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please answer the questions in the pictures A student attempted to identify an u

ID: 853077 • Letter: P

Question

please answer the questions in the pictures

A student attempted to identify an unknown compound by the method used in this experiment. She found that when she heated a sample weighing 0.4862 g, the mass barely changed, dropping to 0.4855g when the product was converted to a chloride, the mass went up, to 0.5247 g. write the balanced chemical equation for the overall reaction that occurs when each of these two original compound is converted to a chloride. If the compound is a hydrogen carbonate, use the sum of Reactions 1 and 2. If the sample is a carbonate, use Reaction . write the equation for a sodium salt and then for a potassium salt. How many moles of the chloride salt would be produced from one mole of original compound? how many grams of the chloride salt would be produced from one molar mass of original compound? what is the theoretical value of Q, as found by Equation 3, if she has the Na salt? if she has the K salt? What was the observed value of Q? Which compound did she have as an unknown?

Explanation / Answer

A) Is the sample a carbonate? NO

If the sample is a metallic carbonate, a metallic oxide and carbon dioxide was produced as the sample was heated. The mass of the metallic oxide is 0.4855 grams.
Let