You perform a chemical reaction in a Styrofoam cup calorimeter (as described in the lab manual)...
You perform a chemical reaction in a Styrofoam cup calorimeter (as described in the lab manual) and measure an overall temperature change of 4.99 °C. The specific heat capacity of the solution is 4.18 J/(g °C), the heat capacity of the calorimeter is 15 J/°C, and the total solution mass is 48.3 g. How much heat energy (in kJ) was transferred to/from the cup and solution?
Homework Answers
The answer is 1.08 kJ
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You perform a chemical reaction in a Styrofoam cup calorimeter
(as described in the lab manual)...
In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently use...
In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used to determine the specific heat of a solid, or to measure the energy of a solutiorn phase reaction. Thermometer Stirring rod A student heats 63.92 grams of iron to 98.03 °C and then drops it into a cup containing 75.92 grams of water at 24.47 °C. She measures the final temperature to be 30.66 °C The heat capacity of the calorimeter (sometimes referred to as the...
The In the laboratory a "coffee cup calorimeter, or constant pressure calorimeter, is frequently used to determi...
The In the laboratory a "coffee cup calorimeter, or constant pressure calorimeter, is frequently used to determine the specific heat of a solid, or to measure the energy of a solution phase reaction. A student heats 61.44 grams of titanium to 97.72 °C and then drops it into a cup containing 83.69 grams of water at 21.75 °C. She measures the final temperature to be 27.96 °C. The heat capacity of the calorimeter (sometimes referred to as the calorimeter constant)...
chemical reaction was performed in a coffee cup calorimeter (the set up you experiment 2). The calorimeter containe...
chemical reaction was performed in a coffee cup calorimeter (the set up you experiment 2). The calorimeter contained 50.0 g of water at an initial temperature After the reaction was complete the temperature of the water was 27.0°C. Coleute a. Calculate the energy change, in joules (J), of the water. The specific heats is 4.18 J/gºC. ater at an initial temperature of 22.0°C. ules ("), of the water. The specific heat (S.H.) of water Page 2 UTOROURUAN b. Identify the...
(5 pts.) A chemical reaction was performed in a coffee cup calorimeter (the set up you...
(5 pts.) A chemical reaction was performed in a coffee cup calorimeter (the set up you used in experiment 2). The calorimeter contained 50.0 g of water at an initial temperature of 22.0°C. After the reaction was complete, the temperature of the water was 27.0 °C. a. Calculate the energy change, in joules (u), of the water. The specific heat (S.H.) of water is 4.18 J/gºC. b. Identify the reaction as endothermic or exothermic. Please explain why.
Thermometer When a solid dissolves in water, heat may be evolved or absorbed. The heat of aissolution (dissolving) can be determined using a coffee cup calorimeter. Cardboard or Styrofoam lid In the...
Thermometer When a solid dissolves in water, heat may be evolved or absorbed. The heat of aissolution (dissolving) can be determined using a coffee cup calorimeter. Cardboard or Styrofoam lid In the laboratory a general chemistry student finds that when 11.13 g of CsBr(s) are dissolved in 114.50 g of water, the temperature of the solution drops from 25.61 to 22.35 °C The heat capacity of the calorimeter (sometimes refered to as the calorimeteγ constant) was determined in a separate...
When 0.0700 mol of a substance is added to 150.0 grams of an aqueous solution in...
When 0.0700 mol of a substance is added to 150.0 grams of an aqueous solution in a Styrofoam cup calorimeter, a chemical reaction occurs that causes the temperature of the solution to increase from 25.3 to 38.3 °C. Assume that the specific heat of the solution is 4.18 J/(g°C) and that the heat capacity of the calorimeter is negligible. Use this data to calculate the enthalpy change (in kJ/mol substance) for the chemical reaction +116 kJ/mol +3.80 kJ/mol -571 kJ/mol...
A chemical reaction causes the temperature of the reservoir of a calorimeter containing 101.7 g of...
A chemical reaction causes the temperature of the reservoir of a calorimeter containing 101.7 g of a dilute aqueous solution to rise from 22.6 °C to 27.7 °C. Calculate the heat q in joules transferred to the reservoir. Assume the specific heat capacity of the reservoir to be 4.18 J/g°C.
4. A styrofoam-cup calorimeter containing 150 g of water is calibrated by generating 1770 J of...
4. A styrofoam-cup calorimeter containing 150 g of water is calibrated by generating 1770 J of heat within it. The temperature increases by 1.67°C. What is the calorimeter constant Ccal (heat capacity of the calorimeter)? c(H20) = 4.184 Jg='K 5. A constant-pressure calorimeter, Where Ccal = 192 JK I. contains 100.0 mL of a 0.200 M aqueous solution of AgNO3. The temperature of the calorimeter and its contents is 22.30°C. Upon addition of 100.0 mL of 0.200 M solution of...
In one of the General Chemistry experiments, you used a coffee-cup calorimeter to measure the heat...
In one of the General Chemistry experiments, you used a coffee-cup calorimeter to measure the heat of neutralization of selected acid-base reactions. The calorimeter consisted of two nested Styrofoam cups with a cardboard lid. A temperature probe was lowered in the solution through a hole in the lid. Is a coffee-cup calorimeter a constant-volume or a constant-pressure device? Is a coffee-cup calorimeter adiabatic? The coffee-cup calorimeter was calibrated by using the neutralization reaction between sodium hydroxide and hydrochloric acid. The...
In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used to determine...
In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used to determine the specific heat of a solid, or to measure the energy of a solution phase reaction. Thermometer Stirring red A student heats 68.26 grams of titanium to 99.16 °C and then drops it into a cup containing 80.78 grams of water at 23.25 °C. She measures the final temperature to be 30.68 °C. The heat capacity of the calorimeter (sometimes referred to as the...
In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used to determine the specific heat of a solid, or to measure the energy of a solutiorn phase reaction. Thermometer Stirring rod A student heats 63.92 grams of iron to 98.03 °C and then drops it into a cup containing 75.92 grams of water at 24.47 °C. She measures the final temperature to be 30.66 °C The heat capacity of the calorimeter (sometimes referred to as the...
The In the laboratory a "coffee cup calorimeter, or constant pressure calorimeter, is frequently used to determine the specific heat of a solid, or to measure the energy of a solution phase reaction. A student heats 61.44 grams of titanium to 97.72 °C and then drops it into a cup containing 83.69 grams of water at 21.75 °C. She measures the final temperature to be 27.96 °C. The heat capacity of the calorimeter (sometimes referred to as the calorimeter constant)...
chemical reaction was performed in a coffee cup calorimeter (the set up you experiment 2). The calorimeter contained 50.0 g of water at an initial temperature After the reaction was complete the temperature of the water was 27.0°C. Coleute a. Calculate the energy change, in joules (J), of the water. The specific heats is 4.18 J/gºC. ater at an initial temperature of 22.0°C. ules ("), of the water. The specific heat (S.H.) of water Page 2 UTOROURUAN b. Identify the...
(5 pts.) A chemical reaction was performed in a coffee cup calorimeter (the set up you used in experiment 2). The calorimeter contained 50.0 g of water at an initial temperature of 22.0°C. After the reaction was complete, the temperature of the water was 27.0 °C. a. Calculate the energy change, in joules (u), of the water. The specific heat (S.H.) of water is 4.18 J/gºC. b. Identify the reaction as endothermic or exothermic. Please explain why.
Thermometer When a solid dissolves in water, heat may be evolved or absorbed. The heat of aissolution (dissolving) can be determined using a coffee cup calorimeter. Cardboard or Styrofoam lid In the laboratory a general chemistry student finds that when 11.13 g of CsBr(s) are dissolved in 114.50 g of water, the temperature of the solution drops from 25.61 to 22.35 °C The heat capacity of the calorimeter (sometimes refered to as the calorimeteγ constant) was determined in a separate...
When 0.0700 mol of a substance is added to 150.0 grams of an aqueous solution in a Styrofoam cup calorimeter, a chemical reaction occurs that causes the temperature of the solution to increase from 25.3 to 38.3 °C. Assume that the specific heat of the solution is 4.18 J/(g°C) and that the heat capacity of the calorimeter is negligible. Use this data to calculate the enthalpy change (in kJ/mol substance) for the chemical reaction +116 kJ/mol +3.80 kJ/mol -571 kJ/mol...
4. A styrofoam-cup calorimeter containing 150 g of water is calibrated by generating 1770 J of heat within it. The temperature increases by 1.67°C. What is the calorimeter constant Ccal (heat capacity of the calorimeter)? c(H20) = 4.184 Jg='K 5. A constant-pressure calorimeter, Where Ccal = 192 JK I. contains 100.0 mL of a 0.200 M aqueous solution of AgNO3. The temperature of the calorimeter and its contents is 22.30°C. Upon addition of 100.0 mL of 0.200 M solution of...
In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used to determine the specific heat of a solid, or to measure the energy of a solution phase reaction. Thermometer Stirring red A student heats 68.26 grams of titanium to 99.16 °C and then drops it into a cup containing 80.78 grams of water at 23.25 °C. She measures the final temperature to be 30.68 °C. The heat capacity of the calorimeter (sometimes referred to as the...
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