Recent questions

0 votes

1 answer 67 views

Calculate the amount of heat required to raise the temperature of 50 grams of water from 25°C to 85°C, given the specific heat of water is 4.184 J/g°C.

asked Jan 23 in ThermoChemistry by AgnesXyg5256 (2.0k points)

0 votes

1 answer 79 views

Calculate the amount of heat required to raise the temperature of 50 g of water from 25°C to 100°C, given the specific heat capacity of water is 4.18 J/g°C.

asked Jan 23 in Chemical thermodynamics by AzucenaGrasb (1.6k points)

0 votes

1 answer 51 views

Calculate the amount of heat required to polymerize 2 moles of styrene into polystyrene given the following information:The enthalpy of polymerization for styrene is -56 kJ/mol and the reaction is exothermic.

asked Jan 23 in ThermoChemistry by NamSampson2 (1.8k points)

0 votes

1 answer 53 views

Calculate the amount of heat required to melt 50 grams of ice at 0°C, given that the enthalpy of fusion of ice is 6.01 kJ/mol.

asked Jan 23 in ThermoChemistry by FelixTolmer3 (1.9k points)

0 votes

1 answer 52 views

Calculate the amount of heat required to melt 50 grams of ice at 0°C and convert it into liquid water at the same temperature. The enthalpy of fusion of ice is 6.01 kJ/mol.

asked Jan 23 in ThermoChemistry by LeathaOchoa (1.7k points)

0 votes

1 answer 49 views

Calculate the amount of heat required to melt 50 grams of ice at 0 C, taking the enthalpy of fusion to be 6.01 kJ/mol.

asked Jan 23 in ThermoChemistry by BrodieUus47 (1.7k points)

0 votes

1 answer 58 views

Calculate the amount of heat required to melt 25 grams of ice at 0°C. The enthalpy of fusion of ice is 6.01 kJ/mol.

asked Jan 23 in ThermoChemistry by EmilySulman6 (2.0k points)

0 votes

1 answer 62 views

Calculate the amount of heat required to melt 20 grams of ice at 0°C and convert it to liquid water at 0°C. The enthalpy of fusion of water is 6.01 kJ/mol. Show all the steps of your calculations.

asked Jan 23 in ThermoChemistry by NilaBody107 (1.7k points)

0 votes

1 answer 57 views

Calculate the amount of heat required to break all the bonds in 5 moles of carbon dioxide using the bond energy values for the C=O bond and the O-H bond.

asked Jan 23 in Chemical reactions by MacLgq130601 (2.4k points)

0 votes

1 answer 50 views

Calculate the amount of heat released when 50 grams of NaOH is dissolved in 500 mL of water at 25°C. The heat of crystallization of NaOH is -44.51 kJ/mol. Assume the final temperature of the solution is 25°C and the heat capacity of the solution is 4.18 J/g °C.

asked Jan 23 in ThermoChemistry by RenaBrower51 (1.7k points)

0 votes

1 answer 52 views

Calculate the amount of heat released when 25 g of NaCl is crystallized from a solution at its saturation point. The heat of crystallization of NaCl is -788 J/g.

asked Jan 23 in ThermoChemistry by NiklasCave18 (1.6k points)

0 votes

1 answer 69 views

Calculate the amount of heat released when 10.0 g of methane gas (CH4) is burned in excess oxygen at constant pressure, given that the enthalpy of combustion of methane is -890.3 kJ/mol.

asked Jan 23 in Physical Chemistry by MarcyVallejo (2.2k points)

0 votes

1 answer 71 views

Calculate the amount of heat released when 10.0 g of methane (CH4) is burned completely in excess oxygen if the enthalpy of combustion of methane is -890 kJ/mol.

asked Jan 23 in Physical Chemistry by 092347908024 (1.7k points)

0 votes

1 answer 68 views

Calculate the amount of heat released when 0.5 moles of propane, C3H8, combust completely in oxygen gas, O2, according to the following balanced equation:C3H8(g) + 5O2(g) -> 3CO2(g) + 4H2O(l), ∆H = -2220 kJ/mol.

asked Jan 23 in ThermoChemistry by MargueriteWa (1.8k points)

0 votes

1 answer 65 views

Calculate the amount of heat energy required to melt 25 grams of ice at 0°C, given that the enthalpy of fusion of ice is 6.01 kJ/mol.

asked Jan 23 in ThermoChemistry by IsabellFrome (2.1k points)

0 votes

1 answer 61 views

Calculate the amount of heat energy required to melt 20 grams of ice at 0°C and determine the final temperature of the resulting water if the enthalpy of fusion of ice is 6.01 kJ/mol and the specific heat capacity of water is 4.18 J/(g·°C).

asked Jan 23 in ThermoChemistry by CamillePiazz (1.8k points)

0 votes

1 answer 50 views

Calculate the amount of heat energy released when 50 mL of 1 M hydrochloric acid (HCl) is mixed with 50 mL of 1 M sodium hydroxide (NaOH) solution. The heat of neutralization for the reaction between HCl and NaOH is -57.1 kJ/mol.

asked Jan 23 in ThermoChemistry by AbbeyBisson8 (1.9k points)

0 votes

1 answer 57 views

Calculate the amount of heat energy needed to melt a 25-g ice cube at its melting point of 0°C. The enthalpy of fusion of water is 6.01 kJ/mol.

asked Jan 23 in ThermoChemistry by NelleVxq8414 (1.5k points)

0 votes

1 answer 54 views

Calculate the amount of heat absorbed when 32 grams of ice at -10°C melts into water and then further heated to 35°C. (Given: Enthalpy of fusion of ice = 6.01 kJ/mol and specific heat of water = 4.18 J/g°C)

asked Jan 23 in ThermoChemistry by Beatris65S46 (1.9k points)

0 votes

1 answer 54 views

Calculate the amount of heat absorbed when 20 grams of ice at -10°C is melted and then warmed to 30°C. The specific heat of ice is 2.09 J/g°C, the specific heat of water is 4.18 J/g°C and the enthalpy of fusion of ice is 6.01 kJ/mol.

asked Jan 23 in ThermoChemistry by SelenaRonan (2.2k points)

Categories