I need help doing this problem out, 560 did
not work so I was wondering if someone could show me steps to see
what I did wrong
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I need help doing this problem out, 560 did
not work so I was wondering if...
I dont understand what Im doing wrong? i calculated mass percent and got 17.84% Calculate the...
I dont understand what Im doing wrong? i calculated mass
percent and got 17.84%
Calculate the concentration of each solution in mass percent Part A 119 g KCI in 588 g H,0 Iνα ΑΣφ mass % 17.84 Submit Previous Answers Request Answer X Incorrect; Try Again; 3 attempts remaining
What am I doing wrong? Part B Write the net ionic equation for the reaction of...
What am I doing wrong?
Part B Write the net ionic equation for the reaction of Ag in HNO3 (aq). Express your answer as a net ionic equation. Identify all of the phases in your answer. ΑΣΦ ? а xa Хь a b X X b . + Ag(s) + 2H+ (aq)+2Ag + (aq) + H, (aq) Submit Previous Answers Request Answer X Incorrect; Try Again; 3 attempts remaining
Please help me with these questions. The last I am on my last try. Constantly get...
Please help me with these questions. The last I am on my last
try. Constantly get it wrong. Thank you
Your spaceship, traveling at 0.91c, needs to launch a probe out the forward hatch so that its speed relative to the planet that you are approaching is 0.94c. Part A With what speed must it leave your ship? Express your answer to two significant figures. Η ΑΣφ PS F1 ? uz с Submit Previous Answers Request Answer X Incorrect; Try...
Please!! I really need help fast. One of our CBE seniors has proposed that she could...
Please!! I really need help fast. One of our CBE seniors has proposed that she could use a Carnot Cycle heat engine on the moon to generate electricity to power her project. She has found that the temperature ranges from 107 °C (direct sunlight) to -153 °C (shade). Using helium as the working fluid (MW = 4, ĉp = 2.5R), it is noted that the entropy change during the isothermal heat addition step is 1.58 kJ/kmol·K. (a) How much heat...
Please help! I got this wrong. Please show work too. Thank you! Find the number of...
Please help! I got this wrong. Please show work too. Thank
you!
Find the number of atoms in a copper rod with a length of 9.90 cm and a radius of 1.00 cm. The density of copper is 8.96 g/cm3 Express the number of atoms to three significant figures or x ion 芻 2.64 1022 Cu atoms Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining
so i know that acetic acid is the solution and i googled the molar mass for...
so i know that acetic acid is
the solution and i googled the molar mass for it which is 60.052,
and the mass was 59.81 so i did 59.81/60.052 which gave me the
answer 0.99597. Why is it wrong ? i dont understand, thats how you
find moles right ? mass/molar mass.
Part A initial temperature of 20.1C. and the final The aluminum cup inside your calorimeter weighs 37.55 g. You add 59.81 g of 1.0 M acetic acid solution...
Please help. The other answers I looked up, I tried them -- they did not work....
Please help. The other answers I looked up,
I tried them -- they did not work. What am I doing wrong?
(1 point) One card is drawn from a standard deck of 52 playing cards. Find the probability of each of the following events: 1. A spade is drawn. Answer: 1 2. A seven is drawn. Answer: 3. A spade or heart is drawn. Answer: 4. A black jack is drawn. Answer:
lem 15.39: Work done in a cyclic process. 7 of 8 I Review Figure 1), consider...
lem 15.39: Work done in a cyclic process. 7 of 8 I Review Figure 1), consider the closed loop 1-2-+3-+4+1. s is a cyclic process in which the initial and final states the same. Take the graduation Po-0.50 atm and graduation Vo = 0.10 L. Part A Find the total work done by the system in this process, and show that it is equal to the area enclosed by the loop. Express your answer in joules to two significant figuren....
I need help with A and B please What was the takeoff speed for such a...
I need help with A and B please
What was the takeoff speed for such a leap? Constants When leaping at an angle of 38.3 °ae the horizontal, a froghopper reaches a maximum height of 48.6 cm above the level ground ΑΣ m/s Submit Previous Answers Request Answer X Incorrect; Try Again; 3 attempts remaining Part B What horizontal distance did the froghopper cover for this world-record leap? cm
I think I need to deal with gauge pressure, but don't know how to. Please explain...
I think I need to deal with gauge pressure, but don't know how
to.
Please explain
Constants Periodic Table Part A A tank contains 38.0 kg of O2 gas at a gauge pressure of 8.00 atm. If the oxygen is replaced by helium at the same temperature, how many kilograms of the latter will be needed to produce a gauge pressure of 6.00 atm? m(He)-3.56 kg Submit Previous Answers Request Answer Incorrect; Try Again; 4 attempts remaining Review your calculations;...
I dont understand what Im doing wrong? i calculated mass
percent and got 17.84%
Calculate the concentration of each solution in mass percent Part A 119 g KCI in 588 g H,0 Iνα ΑΣφ mass % 17.84 Submit Previous Answers Request Answer X Incorrect; Try Again; 3 attempts remaining
What am I doing wrong?
Part B Write the net ionic equation for the reaction of Ag in HNO3 (aq). Express your answer as a net ionic equation. Identify all of the phases in your answer. ΑΣΦ ? а xa Хь a b X X b . + Ag(s) + 2H+ (aq)+2Ag + (aq) + H, (aq) Submit Previous Answers Request Answer X Incorrect; Try Again; 3 attempts remaining
Please help me with these questions. The last I am on my last
try. Constantly get it wrong. Thank you
Your spaceship, traveling at 0.91c, needs to launch a probe out the forward hatch so that its speed relative to the planet that you are approaching is 0.94c. Part A With what speed must it leave your ship? Express your answer to two significant figures. Η ΑΣφ PS F1 ? uz с Submit Previous Answers Request Answer X Incorrect; Try...
Please help! I got this wrong. Please show work too. Thank
you!
Find the number of atoms in a copper rod with a length of 9.90 cm and a radius of 1.00 cm. The density of copper is 8.96 g/cm3 Express the number of atoms to three significant figures or x ion 芻 2.64 1022 Cu atoms Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining
so i know that acetic acid is
the solution and i googled the molar mass for it which is 60.052,
and the mass was 59.81 so i did 59.81/60.052 which gave me the
answer 0.99597. Why is it wrong ? i dont understand, thats how you
find moles right ? mass/molar mass.
Part A initial temperature of 20.1C. and the final The aluminum cup inside your calorimeter weighs 37.55 g. You add 59.81 g of 1.0 M acetic acid solution...
Please help. The other answers I looked up,
I tried them -- they did not work. What am I doing wrong?
(1 point) One card is drawn from a standard deck of 52 playing cards. Find the probability of each of the following events: 1. A spade is drawn. Answer: 1 2. A seven is drawn. Answer: 3. A spade or heart is drawn. Answer: 4. A black jack is drawn. Answer:
lem 15.39: Work done in a cyclic process. 7 of 8 I Review Figure 1), consider the closed loop 1-2-+3-+4+1. s is a cyclic process in which the initial and final states the same. Take the graduation Po-0.50 atm and graduation Vo = 0.10 L. Part A Find the total work done by the system in this process, and show that it is equal to the area enclosed by the loop. Express your answer in joules to two significant figuren....
I need help with A and B please
What was the takeoff speed for such a leap? Constants When leaping at an angle of 38.3 °ae the horizontal, a froghopper reaches a maximum height of 48.6 cm above the level ground ΑΣ m/s Submit Previous Answers Request Answer X Incorrect; Try Again; 3 attempts remaining Part B What horizontal distance did the froghopper cover for this world-record leap? cm
I think I need to deal with gauge pressure, but don't know how
to.
Please explain
Constants Periodic Table Part A A tank contains 38.0 kg of O2 gas at a gauge pressure of 8.00 atm. If the oxygen is replaced by helium at the same temperature, how many kilograms of the latter will be needed to produce a gauge pressure of 6.00 atm? m(He)-3.56 kg Submit Previous Answers Request Answer Incorrect; Try Again; 4 attempts remaining Review your calculations;...
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