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Prove a new penny is not made of pure copper It has a mass of 2.49 and a volume of 0.349cm3?
at first, you have to find the density of the penny. [density = mass/ volume ] so 2.49/ 0.349 = 7.1347. rounded to 7.1 but the density of the copper is 8.92 g/ cm3 as the densities are not close, the penny is not pure copper. hope this help :)
How many copper atoms are in a pure copper statue with a mass of 148kg?
To find the number of copper atoms in the statue, you need to first determine the number of moles of copper using its molar mass. Then, you can multiply the number of moles by Avogadro's number to find the number of atoms. Given that the molar mass of copper is approximately 63.55 g/mol, you can follow these steps to calculate the number of copper atoms in the statue.
What is the relative formula mass of copper?
The relative atomic mass of copper is approximately 63.55. To calculate the relative formula mass of copper, you sum the atomic masses of its atoms, which in this case would just be the atomic mass of copper. Therefore, the relative formula mass of copper would be 63.55.
How do you calculate the mass of 14.5 moles of copper?
To calculate the mass of 14.5 moles of copper, you would first find the molar mass of copper, which is approximately 63.55 g/mol. Then, multiply the number of moles by the molar mass to get the mass of copper. Therefore, the mass of 14.5 moles of copper would be 922.725 grams (14.5 moles * 63.55 g/mol).
How many copper atoms in a penny made of pure copper and weight 2.15g?
A penny made of pure copper has a mass of 2.5g and an atomic mass of copper is 63.55 g/mol. Calculate the number of moles in 2.5g of copper, then use Avogadro's number (6.022 x 10^23 atoms/mol) to find the number of copper atoms. This calculation would yield approximately 1.44 x 10^22 copper atoms in a penny.
Prove a new penny is not made of pure copper It has a mass of 2.49 and a volume of 0.349cm3?
at first, you have to find the density of the penny. [density = mass/ volume ] so 2.49/ 0.349 = 7.1347. rounded to 7.1 but the density of the copper is 8.92 g/ cm3 as the densities are not close, the penny is not pure copper. hope this help :)
Calculate the mass of 0139 moles of copper?
The molar mass of copper (Cu) is 63.55 g/mol. To calculate the mass of 0.139 moles of copper, you can use the formula: mass = moles × molar mass. Therefore, the mass of 0.139 moles of copper is 8.82 grams.
How many copper atoms are in a pure copper statue with a mass of 148kg?
To find the number of copper atoms in the statue, you need to first determine the number of moles of copper using its molar mass. Then, you can multiply the number of moles by Avogadro's number to find the number of atoms. Given that the molar mass of copper is approximately 63.55 g/mol, you can follow these steps to calculate the number of copper atoms in the statue.
What is the atomic mass of copper and zinc?
The density of pure copper is: 8.94 g/cm^3 The density of pure zinc is: 7.13 g/cm^3
What is the mass in g of pure copper ore metal?
It depends how much of it you have.
What is the relative formula mass of copper?
The relative atomic mass of copper is approximately 63.55. To calculate the relative formula mass of copper, you sum the atomic masses of its atoms, which in this case would just be the atomic mass of copper. Therefore, the relative formula mass of copper would be 63.55.
calculate the mass of copper that could be made from 4.0g of copper oxide?
I think 3.55 grams
Copper is a transition element used in the making of coins calculate the mass in grams of 0.0420 moles of copper?
To calculate the mass of copper in grams, you first need to find the molar mass of copper, which is approximately 63.55 g/mol. Then, multiply the number of moles (0.0420 moles) by the molar mass to get the mass in grams. Mass = moles x molar mass Mass = 0.0420 moles x 63.55 g/mol = 2.67 grams of copper.
How do you calculate the mass of 14.5 moles of copper?
To calculate the mass of 14.5 moles of copper, you would first find the molar mass of copper, which is approximately 63.55 g/mol. Then, multiply the number of moles by the molar mass to get the mass of copper. Therefore, the mass of 14.5 moles of copper would be 922.725 grams (14.5 moles * 63.55 g/mol).
How many copper atoms in a penny made of pure copper and weight 2.15g?
A penny made of pure copper has a mass of 2.5g and an atomic mass of copper is 63.55 g/mol. Calculate the number of moles in 2.5g of copper, then use Avogadro's number (6.022 x 10^23 atoms/mol) to find the number of copper atoms. This calculation would yield approximately 1.44 x 10^22 copper atoms in a penny.
Can you calculate the mass of a single copper atom?
The mass of a single copper atom is approximately 1.055 x 10^-25 kilograms. This value is determined by the atomic mass of copper (63.55 grams per mole) and Avogadro's number.
How do you calculate mass of pure product in stoichiometry?
To calculate the mass of a pure product in stoichiometry, you need to use the stoichiometric coefficients from the balanced chemical equation to convert the given amount of reactant into the desired product. Once you have determined the moles of the product, you can then convert moles to grams using the molar mass of the product. This will give you the mass of the pure product produced.
