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The molar mass of copper is its atomic weight on the Periodic Table in g/mol, and is
63.5g/mol
We know that one mole of copper contains
6.022×10^23 atoms of copper
. First convert given mass to moles, and moles to atoms.
= 61.0 g Cu × (1 mol Cu / 63.5 g per mol) ×6.022 × 10 ^23 atom cu / 1 mol Cu) = 5.78× 10^23.
atoms.
61 g Cu 5.7 ×10^23 atoms of Cu.
What else can I help you with?
How many Cu atoms are present in 85mol?
To calculate the number of Cu atoms in 85 mol, you need to use Avogadro's number, which is approximately 6.022 x 10^23 atoms/mol. So, for 85 mol of Cu, the number of Cu atoms would be 85 mol x 6.022 x 10^23 atoms/mol = 5.12 x 10^25 Cu atoms.
How do you convert 12.54 g of Cu to atoms?
To convert grams of Cu to atoms, first calculate the molar mass of Cu from the periodic table (63.55 g/mol). Next, divide the given mass (12.54 g) by the molar mass to get moles of Cu. Finally, use Avogadro's number (6.022 x 10^23 atoms/mol) to convert moles to atoms.
How many atoms would be found in 1.2 grams of copper?
To find the number of atoms in 1.2 grams of copper, you need to first determine the molar mass of copper (Cu). The molar mass of copper is 63.55 g/mol. Next, calculate the number of moles in 1.2 grams of copper (1.2 g / 63.55 g/mol = 0.0189 mol). Finally, use Avogadro's number (6.022 x 10^23 atoms/mol) to convert moles to atoms: 0.0189 mol x 6.022 x 10^23 atoms/mol = approximately 1.14 x 10^22 atoms.
What is the mass in kilograms of 1.20x1028 atoms of copper cu?
To find the mass of 1.20x10^28 atoms of copper (Cu), you need to first calculate the molar mass of copper (Cu), which is approximately 63.55 g/mol. Then, convert the number of atoms to moles by dividing by Avogadro's number (6.022 x 10^23 atoms/mol). Finally, convert moles to kilograms by multiplying by the molar mass and dividing by 1000 to get the mass in kilograms.
How many moles of atoms are in 450000000000000000000000 atoms of Cu?
Divide that number of atoms by 6.02x10^23 atoms/mole
How do you work out 3.01 x 1023 atoms cu?
To calculate the number of atoms in 3.01 x 10²³ atoms of copper (Cu), you simply interpret the notation. The expression indicates that there are 3.01 times 10 raised to the power of 23 atoms, which is a way to express a large quantity, specifically Avogadro's number (approximately 6.022 x 10²³). Thus, 3.01 x 10²³ atoms of copper is approximately half of Avogadro's number, indicating that you have about half a mole of copper atoms.
How many oxygen atoms are present in a 14.0 g sample of Cu(NO3)2?
14.0 g x 1 mole/187.56 g = 0.0746 moles0.0746 moles Cu(NO3)2 x 6 moles O/mole Cu(NO3)2 = 0.448 moles O atoms0.448 moles O atoms x 6.02x10^23 atoms/mole = 2.70x10^23 atoms of oxygen
How many Cu atoms are present in a piece of sterling-silver jewelry weighing 33.14 g?
To determine the number of Cu atoms in the piece of sterling silver jewelry, you would first need to convert the weight of the jewelry to moles using the molar mass of silver. Then, since sterling silver is typically 92.5% silver and 7.5% copper by weight, you can calculate the number of moles of copper present. Finally, use Avogadro's number to convert from moles to atoms.
How many nitrogen atoms are in 10.2 g of copper(II) nitrate?
There are 2 nitrogen atoms in 1 molecule of copper(II) nitrate (Cu(NO3)2). To find the number of nitrogen atoms in 10.2 g of Cu(NO3)2, you first need to calculate the number of moles of Cu(NO3)2 in 10.2 g, then use the mole ratio to find the number of nitrogen atoms. The molar mass of Cu(NO3)2 is 187.56 g/mol.
How many grams do 4.6 x1025 atoms of cu weigh?
To find the weight of 4.6 x 10^25 atoms of copper, you can start by calculating the molar mass of copper, which is approximately 63.55 g/mol. Next, convert the number of atoms to moles by dividing by Avogadro's number (6.022 x 10^23). Finally, multiply the number of moles by the molar mass to find the weight in grams.
What is the oxidation number in Cu2S?
The oxidation number of Cu in Cu2S (copper sulfide) is +1. This is because the overall charge of the compound is 0 and there are two Cu atoms each with an oxidation state of +1.
How many atoms are in CuNO3 2?
Cu(NO3)2 has 9 atoms 1 Cu atom 2 N atoms 6 O atoms
