## Heat and Atomic Mass Calculation### Specific Heat CalculationIf the specific heat of water is \(1 \, \text{cal}/(\text{g} \cdot ^\circ \text{C})\), how many calories of heat are needed to increase the temperature of 75 g of water by 30 °C?#### Specific Heat Formula\[ \text{Specific heat} = \frac{\# \text{calories}}{(\# \text{grams} \times \# \text{degrees temperature changed})} \]### Atomic and Molecular MassesOne mole of atomic units (atoms, molecules, ions, electrons, etc.) is \(6.022 \times 10^{23}\) units (similar to how a dozen equals 12 items). The mass in grams of \(6.022 \times 10^{23}\) atoms of carbon is 12.00 grams or 1 mole, meaning 1 gram atomic mass of carbon atoms = 12.00 gram of carbon. We find the atomic masses for elements on the periodic table.#### Number of Moles of Atoms\[ \# \text{moles of atoms} = \frac{(\# \text{grams of atoms in sample})}{(\text{gram atomic mass})} \]#### Number of Moles of Molecules\[ \# \text{moles of molecules} = \frac{(\# \text{grams of molecules in sample})}{(\text{gram molecular mass})} \]### Exercises#### 3. a. Calculate the mass of sulfur:\[ \text{3 gram atomic mass of sulfur atoms} = \_ \, \text{grams of sulfur}? \]#### 3. b.Calculate the mass in grams of \(6.022 \times 10^{23}\) molecules or a mole of sulfur dioxide (\(\text{SO}_2\)):\[ \text{SO}_2 = \left[32.07 \, \text{g} + (2 \times \_ \, \text{g})\right] \text{ or } \_ \, \text{grams}? \]### ProblemSterling silver contains 92.5% silver and 7.5% copper. A sterling silver dish weighs 185.0 g. What mass of copper is in the dish?---Feel free to go through each section

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If the specific heat of water is ca increase the temperature of 75 g of water by 30 °C? 1gx1°C» how many calories of heat are needed to #calories Specific heat = (#gram x # degrees temperature changed)

If the specific heat of water is ca increase the temperature of 75 g of water by 30 °C? 1gx1°C» how many calories of heat are needed to #calories Specific heat = (#gram x # degrees temperature changed)

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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