the number of atoms of copper presentin 19.7g of22ct gold is(cu =63.5)
with steps
i will mark u brillient
Answers
Answered by
2
You have 9.5⋅1021 atoms of copper in one gram of copper.
Explanation:
To figure out how many atoms of copper you get in 1 gram of copper, you need to use copper's molar mass.
An element's molar mass tells you what the mass of one mole of that element is.
Now, one mole of an element is defined as 6.022⋅1023 atoms of that element - this is known as Avogadro's number. This means that if you know what the mass of one mole is, you can calculate how many atoms would fit into a single gram by using Avogadro's number.
In copper's case, you know that its molar mass is 63.546 g/mol.
This tells you that 6.022⋅1023 atoms of copper can be found in 63.546 g of copper, which means that 1 g of copper will contain
1g⋅6.022⋅1023atoms of Cu63.546g=9.5⋅1021atoms of Cu.
Please mark as Brainliest answer.
Explanation:
To figure out how many atoms of copper you get in 1 gram of copper, you need to use copper's molar mass.
An element's molar mass tells you what the mass of one mole of that element is.
Now, one mole of an element is defined as 6.022⋅1023 atoms of that element - this is known as Avogadro's number. This means that if you know what the mass of one mole is, you can calculate how many atoms would fit into a single gram by using Avogadro's number.
In copper's case, you know that its molar mass is 63.546 g/mol.
This tells you that 6.022⋅1023 atoms of copper can be found in 63.546 g of copper, which means that 1 g of copper will contain
1g⋅6.022⋅1023atoms of Cu63.546g=9.5⋅1021atoms of Cu.
Please mark as Brainliest answer.
Similar questions