Homework Answers
(a.) specific heat of chromium metal = 0.448 J/g.oC
Temperature rise = (heat gained) / [(mass of sample) * (specific heat)]
Temperature rise of chromium metal = (heat gained) / [(mass of chromium metal) * (specific heat)]
Temperature rise of chromium metal = (100 J) / [(5.00 g) * (0.448 J/g.oC)]
Temperature rise of chromium metal = 44.6 oC
(b.) specific heat of boron = 1.0256 J/g.oC
Temperature rise = (heat gained) / [(mass of sample) * (specific heat)]
Temperature rise of boron = (heat gained) / [(mass of boron) * (specific heat)]
Temperature rise of boron = (100 J) / [(5.00 g) * (1.0256 J/g.oC)]
Temperature rise of boron = 19.5 oC
(c.) specific heat of nickel metal = 0.444 J/g.oC
Temperature rise = (heat gained) / [(mass of sample) * (specific heat)]
Temperature rise of nickel metal = (heat gained) / [(mass of nickel metal) * (specific heat)]
Temperature rise of nickel metal = (100 J) / [(5.00 g) * (0.444 J/g.oC)]
Temperature rise of nickel metal = 45.0 oC
(d.) specific heat of tungsten metal = 0.133 J/g.oC
Temperature rise = (heat gained) / [(mass of sample) * (specific heat)]
Temperature rise of tungsten metal = (heat gained) / [(mass of tungsten metal) * (specific heat)]
Temperature rise of tungsten metal = (100 J) / [(5.00 g) * (0.133 J/g.oC)]
Temperature rise of tungsten metal = 150. oC
(e.) specific heat of beryllium metal = 1.8245 J/g.oC
Temperature rise = (heat gained) / [(mass of sample) * (specific heat)]
Temperature rise of beryllium metal = (heat gained) / [(mass of beryllium metal) * (specific heat)]
Temperature rise of beryllium metal = (100 J) / [(5.00 g) * (18245 J/g.oC)]
Temperature rise of beryllium metal = 11.0 oC
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For each of the substances in Question 2, calculate by how much the temperature of the...
the Specific Heat Capicity of Tungsten is given here. 3. Calculate the temperature change when 32...
the Specific Heat Capicity of Tungsten is given here.
3. Calculate the temperature change when 32 grams of tungsten has 21 Joules of heat added to it. temperature be- in between the initial temperatures of the t and will be the same for the metal and the water.) Table 1. Specific heat capacities of various metals and other substances Specific Heat Capacity, C (J/g.°C) 0.129 0.129 0.132 0.133 Specific Heat Capacity, C (3/goC) 0.421 0.444 0.449 0.450 0.460 0.522 0.757...
1. How much heat is required to raise the temperature of 53 g of each of...
1. How much heat is required to raise the temperature of 53 g of each of the following substances by 23 K? Substance A (C 8.37 J/g-K) Substance B 0.945 J/g-K) Substance C (C 0.0567 J/g-K) 5% 2. Determine the specific heat capacities (to 3 significant figures) of the mystery materials, assuming 200. g of a metal at 250.0°C is added to 200. g of waterát 20 C and given the final temperature of a. 37.89°C b.25.00°C с. 87.61°C 3....
15.2 J of heat is applied to 8.0 g samples of each of the following substances:...
15.2 J of heat is applied to 8.0 g samples of each of the following substances: water (s), water (g), mercury (1), and gold (s). Which substance's temperature will increase the most? The Specific Heat Capacities of Some Common Substances Substance Specific Heat Capacity (J/g °C) water (()* (liquid) 4.184 water(s) (ice) 2.03 water (8) (steam) 2.0 aluminum (s) 0.89 iron (s) 0.45 mercury (1) 0.14 0.71 silver (S) 0.24 gold (s) 0.13 *The symbols (s), (), and (g) indicate...
How much heat is gained by nickel when 29.2 g of nickel is warmed from 18.3°C...
How much heat is gained by nickel when 29.2 g of nickel is warmed from 18.3°C to 69.6°C? The specific heat of nickel is 0.443 J/(g. °C). 0 2.37 × 10², 09.00 x 102, 22.73 6.64 x 102) 30.8) Question 11 (1 point) A 170.0-g sample of metal at 78.0°C is added to 170.0 g of H2O() at 15.0°C in an insulated container. The temperature rises to 17.9°C. Neglecting the heat capacity of the container, what is the specific heat...
(References) Use unit analysis to show how to calculate the mass of 19.8 ml of nickel....
(References) Use unit analysis to show how to calculate the mass of 19.8 ml of nickel. See the table below for the density of nickel. (number) (unit) 19.8 mL Ni g Ni (number) (unit) Densities of Some Common Substances Substance Density (g/mL) Water 1.00 Aluminum 2.72 Chromium 7.25 Nickel 8.91 Copper 8.94 Silver 10.50 Lead 11.34 Mercury 13.60 Gold Tungsten Platinum 19.28 19.38 21.46
Which of the following 10.0 gram substances will increase in temperature by the greatest amount when 100 J of hea...
Which of the following 10.0 gram substances will increase in temperature by the greatest amount when 100 J of heat is added to each? Substance D, specific heat 1.67 J/(g°C) Substance C, specific heat 1.22 J/(g°C) Substance A, specific heat 1.06 J/(g°C) Substance B, specific heat 0.892 J/(g°C) Given that the enthalpy of formation, AH, of gaseous nitrogen dioxide is +33.84 kJ/mol, what is the enthalpy change for the following reaction? 2NO2(g) N2(g)202(g) AH= ? -33.84 kJ +67,68 kJ -67.68...
Homework Name: 1) How much heat, in joules, must be added to a 75.0-g iron block...
Homework Name: 1) How much heat, in joules, must be added to a 75.0-g iron block with a specific heat of 0.449 J/g °C to increase its temperature from 25 °C to its melting temperature of 1535 °C? 2) A piece of unknown substance weighs 44.7 g and requires 2110 J to increase its temperature from 23.2 °C to 89.6 °C. What is the specific heat of the substance? 3) A 70.0-g piece of metal at 80.0 °C is placed...
Question 14 of 39 > How much heat is required to raise the temperature of 26.2...
Question 14 of 39 > How much heat is required to raise the temperature of 26.2 g of water from -35 "C to 155 "C? heat: about Careers vacy policy 11:24 SAMSUNG Hint Check Answer < Question 15 of 39 > If 205 cal are added to 28.2 g of solid iron, what is the change in temperature of the iron? The specific heat of iron is 0.11-c. about us career placy policy masec 11:24 SAMSUNG 0 0 0 Question...
QUESTION 11 A 6.22g piece of metal at 97.6°C is placed in a calorimeter containing 25.0mL...
QUESTION 11 A 6.22g piece of metal at 97.6°C is placed in a calorimeter containing 25.0mL of water at 22.0°C. The water tempera and metal temperature equilibrate at 25.4°C. The specific heat of water is 4.184 J/g."C. Calculate the specific heat o the metal. 0.792 J/g.°C 355.64 J/g.°C 1.88x103 J/g °C 1.60 J/g.°C 1.26 J/g.c QUESTION 12 If the same amount of energy in the form of heat is added to 5.00 g samples of each of the metals below,...
Use unit analysis to show how to calculate the mass of 16.5 mL of copper. See...
Use unit analysis to show how to calculate the mass of 16.5 mL of copper. See the table below for the density of copper. (number) (unit) 16.5 mL Cu g Cu (number) (unit) Densities of Some Common Substances Substance Density (g/mL) Water 1.00 Aluminum 2.72 Chromium 7.25 Nickel 8,91 Copper 8.94 Silver 10.50 Lead 11.34 Mercury 13.60 Gold 19.28 Tungsten 19.38 Platinum 21.46
the Specific Heat Capicity of Tungsten is given here.
3. Calculate the temperature change when 32 grams of tungsten has 21 Joules of heat added to it. temperature be- in between the initial temperatures of the t and will be the same for the metal and the water.) Table 1. Specific heat capacities of various metals and other substances Specific Heat Capacity, C (J/g.°C) 0.129 0.129 0.132 0.133 Specific Heat Capacity, C (3/goC) 0.421 0.444 0.449 0.450 0.460 0.522 0.757...
1. How much heat is required to raise the temperature of 53 g of each of the following substances by 23 K? Substance A (C 8.37 J/g-K) Substance B 0.945 J/g-K) Substance C (C 0.0567 J/g-K) 5% 2. Determine the specific heat capacities (to 3 significant figures) of the mystery materials, assuming 200. g of a metal at 250.0°C is added to 200. g of waterát 20 C and given the final temperature of a. 37.89°C b.25.00°C с. 87.61°C 3....
15.2 J of heat is applied to 8.0 g samples of each of the following substances: water (s), water (g), mercury (1), and gold (s). Which substance's temperature will increase the most? The Specific Heat Capacities of Some Common Substances Substance Specific Heat Capacity (J/g °C) water (()* (liquid) 4.184 water(s) (ice) 2.03 water (8) (steam) 2.0 aluminum (s) 0.89 iron (s) 0.45 mercury (1) 0.14 0.71 silver (S) 0.24 gold (s) 0.13 *The symbols (s), (), and (g) indicate...
How much heat is gained by nickel when 29.2 g of nickel is warmed from 18.3°C to 69.6°C? The specific heat of nickel is 0.443 J/(g. °C). 0 2.37 × 10², 09.00 x 102, 22.73 6.64 x 102) 30.8) Question 11 (1 point) A 170.0-g sample of metal at 78.0°C is added to 170.0 g of H2O() at 15.0°C in an insulated container. The temperature rises to 17.9°C. Neglecting the heat capacity of the container, what is the specific heat...
(References) Use unit analysis to show how to calculate the mass of 19.8 ml of nickel. See the table below for the density of nickel. (number) (unit) 19.8 mL Ni g Ni (number) (unit) Densities of Some Common Substances Substance Density (g/mL) Water 1.00 Aluminum 2.72 Chromium 7.25 Nickel 8.91 Copper 8.94 Silver 10.50 Lead 11.34 Mercury 13.60 Gold Tungsten Platinum 19.28 19.38 21.46
Which of the following 10.0 gram substances will increase in temperature by the greatest amount when 100 J of heat is added to each? Substance D, specific heat 1.67 J/(g°C) Substance C, specific heat 1.22 J/(g°C) Substance A, specific heat 1.06 J/(g°C) Substance B, specific heat 0.892 J/(g°C) Given that the enthalpy of formation, AH, of gaseous nitrogen dioxide is +33.84 kJ/mol, what is the enthalpy change for the following reaction? 2NO2(g) N2(g)202(g) AH= ? -33.84 kJ +67,68 kJ -67.68...
Homework Name: 1) How much heat, in joules, must be added to a 75.0-g iron block with a specific heat of 0.449 J/g °C to increase its temperature from 25 °C to its melting temperature of 1535 °C? 2) A piece of unknown substance weighs 44.7 g and requires 2110 J to increase its temperature from 23.2 °C to 89.6 °C. What is the specific heat of the substance? 3) A 70.0-g piece of metal at 80.0 °C is placed...
Question 14 of 39 > How much heat is required to raise the temperature of 26.2 g of water from -35 "C to 155 "C? heat: about Careers vacy policy 11:24 SAMSUNG Hint Check Answer < Question 15 of 39 > If 205 cal are added to 28.2 g of solid iron, what is the change in temperature of the iron? The specific heat of iron is 0.11-c. about us career placy policy masec 11:24 SAMSUNG 0 0 0 Question...
QUESTION 11 A 6.22g piece of metal at 97.6°C is placed in a calorimeter containing 25.0mL of water at 22.0°C. The water tempera and metal temperature equilibrate at 25.4°C. The specific heat of water is 4.184 J/g."C. Calculate the specific heat o the metal. 0.792 J/g.°C 355.64 J/g.°C 1.88x103 J/g °C 1.60 J/g.°C 1.26 J/g.c QUESTION 12 If the same amount of energy in the form of heat is added to 5.00 g samples of each of the metals below,...
Use unit analysis to show how to calculate the mass of 16.5 mL of copper. See the table below for the density of copper. (number) (unit) 16.5 mL Cu g Cu (number) (unit) Densities of Some Common Substances Substance Density (g/mL) Water 1.00 Aluminum 2.72 Chromium 7.25 Nickel 8,91 Copper 8.94 Silver 10.50 Lead 11.34 Mercury 13.60 Gold 19.28 Tungsten 19.38 Platinum 21.46
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