A researcher studying the nutritional value of a new candy places a 6.80 g 6.80 g sample of the candy inside a bomb calorimeter and combusts it in excess oxygen. The observed temperature increase is 2.25 ∘ C. 2.25 ∘C. If the heat capacity of the calorimeter is 32.00 kJ ⋅ K − 1 , 32.00 kJ⋅K−1, how many nutritional Calories are there per gram of the candy?

Achemistry student needs to standardize a fresh solution of sodium hydroxide. he carefully weighs out of oxalic acid , a diprotic acid that can be purchased inexpensively in high purity, and dissolves it in of distilled water. the student then titrates the oxalic acid solution with his sodium hydroxide solution. when the titration reaches the equivalence point, the student finds he has used of sodium hydroxide solution.calculate the molarity of the student's sodium hydroxide solution. be sure your answer has the correct number of significant digits.

Which of the following are good traits of a hypothesis? it will be able to be testedit can predict an outcomeit will explain the observationsall of these

All forces cause motion? true or false