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2. An almond weighs 0.823 grams. When the almond is burned in a calorimeter that contains 124.2 grams of water, the water temperature changes from 23.5 °C to 45.7 °C. The "uncombusted remains" of the almond weighs 0.615 grams. a) Calculate the change in temperature (AT) of the water. b) Calculate the amount of energy that was released from the almond sample. Assume that all of the energy released from the almond was transferred to the water. Use the specific heat (S) of water (1.000 cal/g °C), the mass of the water that was in the flask, and the temperature change (AT) of the water to calculate the amount of energy (2) that was transferred to the water, and thus the amount of energy that was released from almond. ●

2. An almond weighs 0.823 grams. When the almond is burned in a calorimeter that contains 124.2 grams of water, the water temperature changes from 23.5 °C to 45.7 °C. The "uncombusted remains" of the almond weighs 0.615 grams. a) Calculate the change in temperature (AT) of the water. b) Calculate the amount of energy that was released from the almond sample. Assume that all of the energy released from the almond was transferred to the water. Use the specific heat (S) of water (1.000 cal/g °C), the mass of the water that was in the flask, and the temperature change (AT) of the water to calculate the amount of energy (2) that was transferred to the water, and thus the amount of energy that was released from almond. ●

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Can you help me number 2 questions? Also, can you show work of the formula step by step?

**Prelab Questions** 1. **How much energy is required to raise 125 grams of water from 22.0 °C to 43.2 °C?** The specific heat (S) of water is 1.000 cal/g °C. 2. **An almond weighs 0.823 grams. When the almond is burned in a calorimeter that contains 124.2 grams of water, the water temperature changes from 23.5 °C to 45.7 °C. The "uncombusted remains" of the almond weighs 0.615 grams.** a) **Calculate the change in temperature (ΔT) of the water.** b) **Calculate the amount of energy that was released from the almond sample.** - Assume that all of the energy released from the almond was **transferred to the water**. - Use the specific heat (S) of water (1.000 cal/g °C), the mass of the water that was in the flask, and the temperature change (ΔT) of the water to **calculate** the amount of energy (Q) that was transferred to the water, and thus the **amount of energy that was released from the almond**. c) **Calculate the mass of the almond that was "completely combusted."** This is done by subtracting the mass of "uncombusted remains" of the almond from the original mass of the almond. d) **Calculate the energy per gram of almonds** by **dividing** the energy that was released from the almond (from part b) by the mass of the almond that was "completely combusted" (from part c).
Transcribed Image Text:**Prelab Questions** 1. **How much energy is required to raise 125 grams of water from 22.0 °C to 43.2 °C?** The specific heat (S) of water is 1.000 cal/g °C. 2. **An almond weighs 0.823 grams. When the almond is burned in a calorimeter that contains 124.2 grams of water, the water temperature changes from 23.5 °C to 45.7 °C. The "uncombusted remains" of the almond weighs 0.615 grams.** a) **Calculate the change in temperature (ΔT) of the water.** b) **Calculate the amount of energy that was released from the almond sample.** - Assume that all of the energy released from the almond was **transferred to the water**. - Use the specific heat (S) of water (1.000 cal/g °C), the mass of the water that was in the flask, and the temperature change (ΔT) of the water to **calculate** the amount of energy (Q) that was transferred to the water, and thus the **amount of energy that was released from the almond**. c) **Calculate the mass of the almond that was "completely combusted."** This is done by subtracting the mass of "uncombusted remains" of the almond from the original mass of the almond. d) **Calculate the energy per gram of almonds** by **dividing** the energy that was released from the almond (from part b) by the mass of the almond that was "completely combusted" (from part c).
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