The heat involved in a temperature change can be calculated using the following equation. Q (heat) = m(mass) x C(specific heat capacity) x ΔT (change in temperature). Jonathan was running a test in the lab to find out how many calories of energy it would take to heat up a piece of iron. He held the iron in a flame for 1 minute. He immediately placed the iron in 50.0 grams of water that had a temperature of 20oC. He used a thermometer in the water and watched it closely. The thermometer showed the temperature of the water rising and it peaked at 24oC. How much heat did the iron metal transfer to the water? The specific heat capacity of water is 1.00 cal/g-Co

Consider these reactions, where M represents a generic metal. 1. 2 M(s) + 6 HCI(aq) 2 MCI, (аq) + 3 Н, (2) AH1 = -556.0 kJ 2. HCl(g) HCl(aq) AĦ2 = -74.8 kJ 3. H, (g) + Cl, (g) → 2 HCI(g) ΔΗ = -1845.0 kJ 4. MCI, (s) – MCI, (aq) AĦ4 = -493.0 kJ Use the given information to determine the enthalpy of the reaction 2 M(s) + 3 Cl, (g) – - 2 MCl, (s) -556.0 ΔΗ- Incorrect

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A chemical reaction takes place inside a flask submerged in a water bath. The water bath contains  2.70kg  of water at  39.2°C . During the reaction  128.kJ  of heat flows out of the bath and into the flask. Calculate the new temperature of the water bath. You can assume the specific heat capacity of water under these conditions is  4.18·J·g−1K−1 . Be sure your answer has the correct number of significant digits.

A student wishes to determine the heat capacity of a coffee-cup calorimeter. After she mixes 90.5 g of water at 67.5°C with 90.5 g of water, already in the calorimeter, at 19.1°C, the final temperature of the water is 35.0°C. Calculate the heat capacity of the calorimeter in J/K. Use 4.184 J/g°C as the specific heat of water. Enter your answer to three significant figures in unit of J/K.

2) When 100 g of unknown metal at 100 °C added to a calorimeter containing 50.00 g of water the temperature rises from 24.00°C to 36.54°C. Calculate the specific heat of the unknown metal in J/°C. The specific heat of water is 4.184 J/g °C.

1. When 145.6 J of heat are added to 13.0 g of mercury in a thermometer, the temperature increases from 20.0 °C to 100.0 °C. What is the specific heat capacity of the mercury?

A student mixes 67.0 mL of a 2.01 M sodium hydroxide solution with  22.4 mL  of  6.45 M  hydrochloric acid. The temperature of the mixture rises  17.2 ° C.  The density of the resulting solution is 1.00  g   mL  and has a specific heat capacity of 4.184  J   g  ·   ° C . The heat capacity of the calorimeter is 16.97  J   ° C .  Part 1:   (a) Identify the limiting reagent for the reaction.         Part 2:   (b) Calculate the heat of reaction (in J).    qrxn =      ×  10    JEnter your answer in scientific notation.   Part 3 out of 3   (c) Find the enthalpy of neutralization (in kJ/mol). ΔHneutralization =  ____ kj/mol

A chemical reaction takes place inside a flask submerged in a water bath. The water bath contains 9.10 kg of water at 34.3°C. During the reaction 62.1 kJ of heat flows out of the bath and into the flask.Calculate the new temperature of the water bath. You can assume the specific heat capacity of water under these conditions is 4.18·J·g−1K−1. Round your answer to 3 significant digits.

Consider these reactions, where M represents a generic metal. 1. 2 M(s) + 6 HCI(aq) → 2 MCl, (aq) + 3 H, (g) AH1 = -698.0 kJ HCl(g) → HCI(aq) AH = -74.8 kJ H, (g) + Cl, (g) → 2 HCl(g) AH3 = -1845.0 kJ MCI, (s) → MCI, (aq) AH = -292.0 kJ Use the given information to determine the enthalpy of the reaction 2 M(s) + 3 Cl, (g) → 2 MCI, (s) 2. 3. 4.