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.

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Q: A 2.00 g sample of a salt (MX(s)) is added to 20.0 g of water at 22.0 °C in a calorimeter. The…

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Q: Cyclohexanol, C6H12O (100.2 g/mol), has a heat of combustion, ΔHcomb = -3.727 × 103 kJ/mol. 0.535 g…

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Q: When 50 mL of 0.400 M aqueous hydrochloric acid (HC1; Molar mass: 36.5 g'mol) is mixed with 50 mL of…

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Q: How much will the temperature of a cup (176 g) of coffee at 94.8 °C be reduced (in °C) when a 45 g…

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Q: A 325.0 g piece of gold at 427.0 °C is dropped into 200.0 mL of water at 22.0 °C. The specific heat…

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Q: Using the equations H2 (g) + F2 (g) → 2 HF (g) AH° = -79.2 kJ/mol C (s) + 2 F2 (g) → CF4 (g) AH° =…

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Q: A block of an alloy of mass 35.0 g and at a temperature of 19.54 °C is placed in a calorimeter…

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Q: 4. How much will the temperature of a cup (180 g) of coffee at 95 °C be reduced when a spoon…

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Q: ₂0 and 0.444 J/g.°C for Fe. eat capacity of the calorimeter = 3/°C

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Q: Enter your answer in the provided box. If 0.10 mol of ammonium chloride (NH,C) is dissolved in a…

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Q: 0.018 moles of a solute is dissolved in 14.85 g of water in a calorimeter with a heat capacity of…

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Q: Magnesium metal reacts with HCl according to the following balanced equation: Mg(s)  +      2 HCl…

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Q: 6.00 g of a water soluble salt was dissolved in 75.0mL of water. The initial temperature of the…

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Q: A 3.96 g sample of carbon is introduced into the combustion chamber of a calorimeter containing…

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Q: How many milliliters of water at 23 °C with a density of 1.00 g/mL must be mixed with 180 mL (about…

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Q: Consider the formation of molecular hydrogen H₂ from hydrogen atoms: H(g) + H(g) → H₂(g). Indicate…

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Q: A student performed the procedure described in the lab manual using 49.9 mL of 1.0 M HCI and 49.3 mL…

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Q: When 2.07 g of NaCl are added to 114 g of water in a constant pressure calorimeter, the temperature…

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Q: A hot lump of 29.8 g of copper at an initial temperature of 50.7 °C is placed in 50.0 mL H2O…

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Q: f a chunk of metal weighing 19 g is boiled in water at 100 °C, then place in a calorimeter with 35 g…

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Q: How many milliliters of water at 3.16°C with a density of 1.00 g/mL must be mixed with 180 mL (about…

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Q: When 9.85 grams of potassium hydroxide (KOH) are dissolved in 150.0 grams of water at 25.0 °C in an…

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Q: A 4.77 g sample of an unknown salt (MM = 116.82 g/mol) is dissolved in 150.00 g water in a coffee…

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Q: The specific heat capacity of silver is 0.24 J/°C·g. Calculate the energy required to raise…

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Q: 11. When 6.50 g of solid NaOH is dissolved in 100,0 g of water in a calorimeter, the temperature…

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