Calculate the amount of heat required to completely sublime 88.0g of solid dry ice (CO2) at its sublimation temperature. The heat of sublimation for carbon dioxide is 32.3 kJ/mol. I calculated 67.66 kJ and mastering chemistry is saying “Not quite. Check through your calculations; you may have made a rounding error or used the wrong number of significant figures.” I don’t know what to do differently…
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