<h3>
Answer:</h3>
5.078 Cal/g
<h3>
Explanation:</h3>
We are given;
Mass of the sample of candy as 4.10 g
Change in temperature, °C = 2.1 °C
Heat capacity of the calorimeter, C = 41.50 kJ/K
We are required to calculate the nutritional Calories per gram of candy
Since the Candy sample was burnt
Then the heat lost by the candy is equivalent to the heat absorbed by the calorimeter.
Therefore, we need to calculate the heat energy absorbed by the calorimeter.
Quantity of heat = Heat capacity × Change in temperature
Q = C×Δt
Q = 41.50 kJ/K × 2.1 K
= 87.15 kJ
Therefore;
The heat released by 4.10 g of candy is 87.15 kJ
Calories per gram = Heat energy ÷ mass of candy
But; 1 kJ = 4.186 Calories
Therefore;
Number of calories = 87.15 kJ ÷ 4.186 Claories/kJ
= 20.82 Calories
Hence, calories per gram = 20.83 Cal ÷ 4.10 g
= 5.078 Cal per g
= 5.078 Cal/g
Thus, the nutritional Calories per gram of candy is 5.078 Cal/g
