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How many atoms of calcium are in 2g of calcium?[at.mass of Ca =40]?
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How many atoms of calcium are in 2g of calcium?[at.mass of Ca =40]?
Calculation of Number of Atoms of Calcium in 2g


Step 1: Calculate the number of moles of calcium in 2g of calcium

Formula: Number of moles = Mass / Molar mass

Calculation: Number of moles = 2g / 40g/mol = 0.05 mol


Step 2: Calculate the number of atoms in 0.05 mol of calcium

Formula: Number of atoms = Number of moles x Avogadro's number

Calculation: Number of atoms = 0.05 mol x 6.022 x 10^23 atoms/mol = 3.011 x 10^22 atoms


Step 3: Final Answer

Therefore, there are 3.011 x 10^22 atoms of calcium in 2g of calcium.
Community Answer
How many atoms of calcium are in 2g of calcium?[at.mass of Ca =40]?
In 2gram of calcium number of moles =2/40=1/20since number of atoms = No. of moles*avogadros NO =6.023*10^23/20=3.0115*10^22
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How many atoms of calcium are in 2g of calcium?[at.mass of Ca =40]?
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