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Question (2 points) See page 22 1st attempt See Periodic Table See Hint If all of...
Il See Periodic Table See Hin If all of the energy from burning 254.0 g of...
Il See Periodic Table See Hin If all of the energy from burning 254.0 g of propane (AHcomb.cana = -2220 kJ/mol) is used to heat water, how many liters of water can be heated from 20.0°C to 100.0°C? (Assume that the density of water is 1.00 g/mL) L of water
have united attempts/There is no attempt penalty Question (6 points) See page 236 1st attempt See...
have united attempts/There is no attempt penalty Question (6 points) See page 236 1st attempt See Periodic Table See Hint An insulated container is used to hold 48.5 g of water at 39.8°C. A sample of copper weighing 7.60 g is placed in a dry test tube and heated for 30 minutes in a boiling water bath at 100.0°C. The heated test tube is carefully removed from the water bath with laboratory tongs and inclined so that the copper slides...
14 Question e See page 585 (1 point) 1st attempt See Periodic Table See Hint -5 -1 The rate constant for the reaction b...
14 Question e See page 585 (1 point) 1st attempt See Periodic Table See Hint -5 -1 The rate constant for the reaction below was determined to be 3.241x10 s a 225 kJ/mol. What wou Id be the value of the rate constant at 9.40x10 K? N20(g) > N2 (8) +O (g) 800 K. The activation energy of the reaction is -1
14 Question e See page 585 (1 point) 1st attempt See Periodic Table See Hint -5 -1 The...
There is no attempt penalty 07 Question (2 points) a See page 443 1st attempt Feedback...
There is no attempt penalty 07 Question (2 points) a See page 443 1st attempt Feedback liul See Periodic Table See Hint A weather balloon with a volume of 171 L is launched at 20.0°C at sea level, where the atmospheric pressure is 1.00 atm. The balloon rises to an altitude of 2.00 x 104 m, where atmospheric pressure is 57.0 mmHg and the temperature is 210.0 K. What is the volume of the balloon at 2.00 x 104m? 1526.1...
6 Question (1point) See page 228 Adding nitric acid to water is quite exothermic. Calculate the...
6 Question (1point) See page 228 Adding nitric acid to water is quite exothermic. Calculate the temperature change (AT) when 100.0 mL of water (d=1.00 g/mL) at 20.0°C [c-75.3 J/(mol-°C)] and 10.0 mL of concentrated HNO(16.0 M,AHin-33.3 kJ/mol) are combined. 1st attempt See Periodic Table See Hint Assume the concentrated HNO3 has a density equal to that of water and its addition doesn't add a significant amount of water to the system. °C
estion (1 point) a See page 3 1th attempt d See Periodic Table See Hint Based...
estion (1 point) a See page 3 1th attempt d See Periodic Table See Hint Based on the thermodynamic propeřties provided for water, determine the energy change when the temperature of 0.450 kg of water decreased from 113 °C to 20.0 °C Property Melting point Boiling point Value 0 100.0 6.01 40.67 37.1 75.3 33.6 Units oC kl/mol kJ/mol /mol °C Cp(s) /mol °C -163 k) 03 > 10th attempt 03 9th attempt VIEW SOLUTION < 08-14 > 5 OF...
V 1st attempt . See Periodic Table D See Hint Suppose an oven's radiation wavelength is...
V 1st attempt . See Periodic Table D See Hint Suppose an oven's radiation wavelength is 0.125 m. A container with 150.00 g of water was placed in the oven, and the temperature of the water rose from 20.0°C to 80.0°C. How many photons of this microwave radiation were required to heat the water? (Assume that all the energy from the radiation was used to raise the temperature of the water.) photons
1st attempt See Periodic Table See Hint A reversible reaction that occurs in a single step...
1st attempt See Periodic Table See Hint A reversible reaction that occurs in a single step has AH-47.2 kJ/mol and E) - 63.2 kJ/mol. What is the activation energy of the reverse reaction? 649 W/mol
07 Question (1 point) d See page 593 1st attempt see Periodic Table ) See Hint A crystalline orm of palladium has a density of 1203 g/cm'if the radius of plildum atoms is 1370 pm,whatis the p...
07 Question (1 point) d See page 593 1st attempt see Periodic Table ) See Hint A crystalline orm of palladium has a density of 1203 g/cm'if the radius of plildum atoms is 1370 pm,whatis the palladium unit atoms is 137.0 pm, what is the palladium unit cell? Choose one: O A. face-centered cubic O B. simple cubic O C. body-centered cubic O D. It cannot be determined from the information givern 07/26
07 Question (1 point) d See page...
1st attempt See Periodic Table See Hint COAST Tutorial Problem Phthalates used as plasticizers in rubber...
1st attempt See Periodic Table See Hint COAST Tutorial Problem Phthalates used as plasticizers in rubber and plastic products are believed to act as hormone mimics in humans. The value of AH comb for dimethylphthalate (C10H1004) is -4685 kJ/mol. Assume 0.870 g of dimethylphthalate is combusted in a calorimeter whose heat capacity (Ccalorimeter) is 6.35 kJ/°C at 21.5°C. What is the final temperature of the calorimeter? "С SUBMIT ANSWER 1 OF 5 QUESTIONS COMPLETED < 04/05 >
Il See Periodic Table See Hin If all of the energy from burning 254.0 g of propane (AHcomb.cana = -2220 kJ/mol) is used to heat water, how many liters of water can be heated from 20.0°C to 100.0°C? (Assume that the density of water is 1.00 g/mL) L of water
have united attempts/There is no attempt penalty Question (6 points) See page 236 1st attempt See Periodic Table See Hint An insulated container is used to hold 48.5 g of water at 39.8°C. A sample of copper weighing 7.60 g is placed in a dry test tube and heated for 30 minutes in a boiling water bath at 100.0°C. The heated test tube is carefully removed from the water bath with laboratory tongs and inclined so that the copper slides...
14 Question e See page 585 (1 point) 1st attempt See Periodic Table See Hint -5 -1 The rate constant for the reaction below was determined to be 3.241x10 s a 225 kJ/mol. What wou Id be the value of the rate constant at 9.40x10 K? N20(g) > N2 (8) +O (g) 800 K. The activation energy of the reaction is -1
14 Question e See page 585 (1 point) 1st attempt See Periodic Table See Hint -5 -1 The...
There is no attempt penalty 07 Question (2 points) a See page 443 1st attempt Feedback liul See Periodic Table See Hint A weather balloon with a volume of 171 L is launched at 20.0°C at sea level, where the atmospheric pressure is 1.00 atm. The balloon rises to an altitude of 2.00 x 104 m, where atmospheric pressure is 57.0 mmHg and the temperature is 210.0 K. What is the volume of the balloon at 2.00 x 104m? 1526.1...
6 Question (1point) See page 228 Adding nitric acid to water is quite exothermic. Calculate the temperature change (AT) when 100.0 mL of water (d=1.00 g/mL) at 20.0°C [c-75.3 J/(mol-°C)] and 10.0 mL of concentrated HNO(16.0 M,AHin-33.3 kJ/mol) are combined. 1st attempt See Periodic Table See Hint Assume the concentrated HNO3 has a density equal to that of water and its addition doesn't add a significant amount of water to the system. °C
estion (1 point) a See page 3 1th attempt d See Periodic Table See Hint Based on the thermodynamic propeřties provided for water, determine the energy change when the temperature of 0.450 kg of water decreased from 113 °C to 20.0 °C Property Melting point Boiling point Value 0 100.0 6.01 40.67 37.1 75.3 33.6 Units oC kl/mol kJ/mol /mol °C Cp(s) /mol °C -163 k) 03 > 10th attempt 03 9th attempt VIEW SOLUTION < 08-14 > 5 OF...
V 1st attempt . See Periodic Table D See Hint Suppose an oven's radiation wavelength is 0.125 m. A container with 150.00 g of water was placed in the oven, and the temperature of the water rose from 20.0°C to 80.0°C. How many photons of this microwave radiation were required to heat the water? (Assume that all the energy from the radiation was used to raise the temperature of the water.) photons
1st attempt See Periodic Table See Hint A reversible reaction that occurs in a single step has AH-47.2 kJ/mol and E) - 63.2 kJ/mol. What is the activation energy of the reverse reaction? 649 W/mol
07 Question (1 point) d See page 593 1st attempt see Periodic Table ) See Hint A crystalline orm of palladium has a density of 1203 g/cm'if the radius of plildum atoms is 1370 pm,whatis the palladium unit atoms is 137.0 pm, what is the palladium unit cell? Choose one: O A. face-centered cubic O B. simple cubic O C. body-centered cubic O D. It cannot be determined from the information givern 07/26
07 Question (1 point) d See page...
1st attempt See Periodic Table See Hint COAST Tutorial Problem Phthalates used as plasticizers in rubber and plastic products are believed to act as hormone mimics in humans. The value of AH comb for dimethylphthalate (C10H1004) is -4685 kJ/mol. Assume 0.870 g of dimethylphthalate is combusted in a calorimeter whose heat capacity (Ccalorimeter) is 6.35 kJ/°C at 21.5°C. What is the final temperature of the calorimeter? "С SUBMIT ANSWER 1 OF 5 QUESTIONS COMPLETED < 04/05 >
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