Chapter 5: Q33E (page 227)
The amount of fat recommended for someone with a daily diet of 2000 Calories is 65g. What percent of the calories in this diet would be supplied by this amount of fat if the average number of calories for fat is 9.1 Calories/g?
65 g of fat serves 29.5% of 2000 calories.
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How many milliliters of water at 23 °C with a density of 1.00 g/mL must be mixed with 180 mL (about 6 oz) of coffee at 95 °C so that the resulting combination will have a temperature of 60 °C? Assume that coffee and water have the same density and the same specific heat.
Calculate the enthalpy of combustion of propane, C3H8(g), for the formation of H2O(g) and CO2(g). The enthalpy of formation of propane is -104 kJ/mol.
From the data in Table 5.2, determine which of the following fuels produces the greatest amount of heat per gram when burned under standard conditions: CO(g), CH4(g), or C2H2(g).
How many kilojoules of heat will be released when exactly 1 mole of iron, Fe, is burned to form Fe2O3(s) at standard state conditions?
How much heat is produced when 1.25 g of chromium metal reacts with oxygen gas under standard conditions?
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