Chemistry, 14.11.2019 05:31 saabrrinnaaa
Asample ofpolystyrene, which has a specific heat capacity of 1.880 j/g k, is put into a calorimeter that contains 100.0 g of water. the polystyrene sample starts off at 89.8 c and the temperature of water starts off at 19.0°c. when the temperature of the water stops changing it is 33.5°c. the pressure remains constant at 1.0 atm. calculate the mass of the polystyrene sample. be sure your answer is rounded to significant digits.
Answers: 3
Chemistry, 21.06.2019 21:40
During trial 2, what allowed you to determine that aluminum was the limiting reactant? check all that apply. all of the copper dissolved. all of the aluminum dissolved. the solution turned clear. the number of grams of copper(ii) chloride used in the reaction was greater than the number of grams of aluminum. the molar ratio of copper(ii) chloride to aluminum was greater than 3: 2, the equation’s molar ratio.
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Asample ofpolystyrene, which has a specific heat capacity of 1.880 j/g k, is put into a calorimeter...
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