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Question:

2.00 X 10^5 lbs of copper sheets eqauls how many atoms of copper?

2.00 X 10^5 lbs of copper sheets eqauls how many atoms of copper?

Answer:

convert 10^5 lbs into kilograms, and then into grams. Then multiply by 2.00 and then by 6.02 x 10^23 (# of atoms in a gram of any element (1 mol)). I would check that against something else.my high school chemistry may be a little rusty.
Jun 28, 2018
The atomic mass of copper in pounds is 0.140095063404998 pound You divide your given weight with this figure and you'd get the number of moles of copper present. 1 mole is defined as 6.0221415 x 10 ^23 (or more commonly known as avogardo's constant - see reference) So you multiply the number of moles you found above by the Avogardo's constant to get the number of atoms of copper present - which by the way is a pretty huge number.
Jun 28, 2018
Sounds like something broke in the wiper drive train. The stress of the motor trying to move the wipers was more then it could handle.
Jun 28, 2018
depending on what kind of car you have you might need a new wiper transmissionthe pop you heard could be a knuckle that popped off on the wiper transyou should always make sure your wipers are free before turning them onor leaving your parking spot.this could be an expensive lesson
Jun 28, 2018
you have long arms hooked to the wiper motor. maybe 1 of the arms popped off.
Jun 28, 2018
convert 10^5 lbs into kilograms, and then into grams. Then multiply by 2.00 and then by 6.02 x 10^23 (# of atoms in a gram of any element (1 mol)). I would check that against something else.my high school chemistry may be a little rusty.
Jun 28, 2018
The atomic mass of copper in pounds is 0.140095063404998 pound You divide your given weight with this figure and you'd get the number of moles of copper present. 1 mole is defined as 6.0221415 x 10 ^23 (or more commonly known as avogardo's constant - see reference) So you multiply the number of moles you found above by the Avogardo's constant to get the number of atoms of copper present - which by the way is a pretty huge number.
Jun 28, 2018
Sounds like something broke in the wiper drive train. The stress of the motor trying to move the wipers was more then it could handle.
Jun 28, 2018
depending on what kind of car you have you might need a new wiper transmissionthe pop you heard could be a knuckle that popped off on the wiper transyou should always make sure your wipers are free before turning them onor leaving your parking spot.this could be an expensive lesson
Jun 28, 2018
you have long arms hooked to the wiper motor. maybe 1 of the arms popped off.
Jun 28, 2018

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