Answer :
Final answer:
To find the number of grams of the substance that can be heated, use the formula Q = mcΔT and solve for m. Plugging in the given values, we can calculate the mass of the substance to be 8.9 g.
Explanation:
To find the number of grams of the substance that can be heated, we can use the formula:
Q = mcΔT
where:
- Q is the heat energy (in calories)
- m is the mass of the substance (in grams)
- c is the specific heat capacity of the substance (in cal/g °C)
- ΔT is the change in temperature (in °C)
Plugging in the given values:
300 cal = m * 1.15 cal/g °C * (77 °C - 44 °C)
Simplifying the equation:
300 = 33.75m
Dividing both sides by 33.75:
m = 8.89 g
Therefore, the correct answer is 8.9 g.
Learn more about specific heat capacity here:
https://brainly.com/question/28302909
