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Question 19 Tries remaining: 4 Points out of 1.00 P Flag question The position of a...
Question 5 Tries remaining: 3 Points out of 1.00 P Flag question To measure their mass...
Question 5 Tries remaining: 3 Points out of 1.00 P Flag question To measure their mass while staying in zero-g environments, astronauts use a body-mass measuring device (BMMD). This consist of them grabbing a big spring, and oscillating on it in simple harmonic motion, and measuring the period. The spring constant of the BMMD is 3100 N/m. A) If the astronaut has a period of 1.07 s, what is their mass? Answer: Check Question 6 Points out of 1.00 Tries...
Question 12 Tries remaining: 4 Points out of 1.00 p Flag question In Edgar Allen Poe's...
Question 12 Tries remaining: 4 Points out of 1.00 p Flag question In Edgar Allen Poe's short story "The Pit and the Pendulum" includes a scene where a bladed pendulum swings over a person, slowly getting closer. A) If the pendulum has a period of 5.73 s ("Its sweep was brief, and of course slow."), how long is the pendulum? Answer: Check Question 13 Tries remaining: 4 Points out of 1.00 Flag question B) The story also claims that the...
Question 15 Tries remaining: 1 Points out of 1.00 P Flag question Which of the following...
Question 15 Tries remaining: 1 Points out of 1.00 P Flag question Which of the following pH values are within the buffer range for a buffer containing 0.5 M NaHSO4 and 0.5 M Na2SO4? The Ka for HS04 is 1.2x10-2 Select any answers that apply. Multiple tries are permitted; however, 25% (1/4) point will be deducted for each incorrect response. Select one or more 1.21 0.21 2.54 4.13 7.89 Check action 10
part 1 part 3 part 4 Tries remaining Points out of 1.00 P Flag question The...
part 1
part 3
part 4
Tries remaining Points out of 1.00 P Flag question The molar solubility of mercury (1) sulfate (Hg2SO4) is 5.7 x 10-3 M. Determine the Ksp This question allows multiple attempts, however, 1/5 (20%) point will be deducted if an incorrect submission is submitted. Answer: Check Question 2 Tres remaining Points out of 100 pFing question The Ksp for the salt calcium hydroxide (Ca(OH)2) is 1.3 x 10-6. Determine its molar solubility This question allows...
Question 9 Correct 1.00 points out of 1.00 p Flag question A cart of mass 316...
Question 9 Correct 1.00 points out of 1.00 p Flag question A cart of mass 316 g is placed on a frictionless horizontal air track. A spring having a spring constant of 8.41 N/m is attached between the cart and the left end of the track. The cart is displaced 433 cm from its equilibrium position. (a) Find the period at which it oscillates. Answer: 1.217054264s You're right The correct answer is: 1.22 s Question 10 Correct 1.00 points out...
Question 1 Tries remaining: 2 Points out of 1.00 P Flag question What is the percent...
Question 1 Tries remaining: 2 Points out of 1.00 P Flag question What is the percent ionization of a 0.00478 M solution of HF? The Kais 6.4x10-4. Multiple tries are permitted; however, 20% (1/5) point will be deducted for each incorrect response. Answer: Check
Question 11 Tries remaining: 4 Points out of 1.00 p Flag question Luigi is driving a...
Question 11 Tries remaining: 4 Points out of 1.00 p Flag question Luigi is driving a go-kart at 15.4 m/s while holding a koopa shell. The mass of Luigi and the go-kart is 164 kg and the mass of the koopa shell is 11.3kg. If Luigi throws the shell behind him at a speed of 34.6 m/s, what is Luigi's velocity immediately after throwing the shell? Indicate direction with sign where to the right is the positive direction. initial final...
Question 13 Tries remaining 2 Points out of 1.00 P Flag question If the AH for...
Question 13 Tries remaining 2 Points out of 1.00 P Flag question If the AH for a given reaction is -14.9 kJ, and AS is -78.1 J/K, indicate whether the reaction is spontaneous (and the sign for AG) at the temperature listed. This question allows multiple attempts, however, 1/4 (25%) point will be deducted if an incorrect submission is submitted. T = 150K T298 K Choose Choose Check
Check Question 8 Tries remaining: 2 Points out of 1.00 P Flag question What is the...
Check Question 8 Tries remaining: 2 Points out of 1.00 P Flag question What is the poH of a 0.01305 M solution of LiHS? The Ka of H2S is 8.9x10-8. Multiple tries are permitted; however, 20% (1/5) point will be deducted for each incorrect response. Answer: Check 59% A RAPJA ві в е год. е
19 Question 19 Tries remaining 1 Points out of 1.00 P Flag question For the equilibrium...
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Question 19 Tries remaining 1 Points out of 1.00 P Flag question For the equilibrium reaction written below, AG = -213.9 kJ at 298 K. If the partial pressure of CO2 is 1.4 atm, what is the standard change in Gibb's free energy (kJ) of this reaction? CO,() =CO,() Multiple tries are permitted; however, 20% (1/5) point will be deducted for each incorrect response. Answer:
Question 5 Tries remaining: 3 Points out of 1.00 P Flag question To measure their mass while staying in zero-g environments, astronauts use a body-mass measuring device (BMMD). This consist of them grabbing a big spring, and oscillating on it in simple harmonic motion, and measuring the period. The spring constant of the BMMD is 3100 N/m. A) If the astronaut has a period of 1.07 s, what is their mass? Answer: Check Question 6 Points out of 1.00 Tries...
Question 12 Tries remaining: 4 Points out of 1.00 p Flag question In Edgar Allen Poe's short story "The Pit and the Pendulum" includes a scene where a bladed pendulum swings over a person, slowly getting closer. A) If the pendulum has a period of 5.73 s ("Its sweep was brief, and of course slow."), how long is the pendulum? Answer: Check Question 13 Tries remaining: 4 Points out of 1.00 Flag question B) The story also claims that the...
Question 15 Tries remaining: 1 Points out of 1.00 P Flag question Which of the following pH values are within the buffer range for a buffer containing 0.5 M NaHSO4 and 0.5 M Na2SO4? The Ka for HS04 is 1.2x10-2 Select any answers that apply. Multiple tries are permitted; however, 25% (1/4) point will be deducted for each incorrect response. Select one or more 1.21 0.21 2.54 4.13 7.89 Check action 10
part 1
part 3
part 4
Tries remaining Points out of 1.00 P Flag question The molar solubility of mercury (1) sulfate (Hg2SO4) is 5.7 x 10-3 M. Determine the Ksp This question allows multiple attempts, however, 1/5 (20%) point will be deducted if an incorrect submission is submitted. Answer: Check Question 2 Tres remaining Points out of 100 pFing question The Ksp for the salt calcium hydroxide (Ca(OH)2) is 1.3 x 10-6. Determine its molar solubility This question allows...
Question 9 Correct 1.00 points out of 1.00 p Flag question A cart of mass 316 g is placed on a frictionless horizontal air track. A spring having a spring constant of 8.41 N/m is attached between the cart and the left end of the track. The cart is displaced 433 cm from its equilibrium position. (a) Find the period at which it oscillates. Answer: 1.217054264s You're right The correct answer is: 1.22 s Question 10 Correct 1.00 points out...
Question 1 Tries remaining: 2 Points out of 1.00 P Flag question What is the percent ionization of a 0.00478 M solution of HF? The Kais 6.4x10-4. Multiple tries are permitted; however, 20% (1/5) point will be deducted for each incorrect response. Answer: Check
Question 11 Tries remaining: 4 Points out of 1.00 p Flag question Luigi is driving a go-kart at 15.4 m/s while holding a koopa shell. The mass of Luigi and the go-kart is 164 kg and the mass of the koopa shell is 11.3kg. If Luigi throws the shell behind him at a speed of 34.6 m/s, what is Luigi's velocity immediately after throwing the shell? Indicate direction with sign where to the right is the positive direction. initial final...
Question 13 Tries remaining 2 Points out of 1.00 P Flag question If the AH for a given reaction is -14.9 kJ, and AS is -78.1 J/K, indicate whether the reaction is spontaneous (and the sign for AG) at the temperature listed. This question allows multiple attempts, however, 1/4 (25%) point will be deducted if an incorrect submission is submitted. T = 150K T298 K Choose Choose Check
Check Question 8 Tries remaining: 2 Points out of 1.00 P Flag question What is the poH of a 0.01305 M solution of LiHS? The Ka of H2S is 8.9x10-8. Multiple tries are permitted; however, 20% (1/5) point will be deducted for each incorrect response. Answer: Check 59% A RAPJA ві в е год. е
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Question 19 Tries remaining 1 Points out of 1.00 P Flag question For the equilibrium reaction written below, AG = -213.9 kJ at 298 K. If the partial pressure of CO2 is 1.4 atm, what is the standard change in Gibb's free energy (kJ) of this reaction? CO,() =CO,() Multiple tries are permitted; however, 20% (1/5) point will be deducted for each incorrect response. Answer:
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