The atomic mass of calcium is 40 u.what will be the no. of calcium atoms in 0.4 u of calcium ? please explain the steps as well say how is it please.
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okk fine
maybe i dont if it is....
what ?
0.4 u ............... 0.4 g
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hey, the question is right
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If it would be 0.4g , then by the same formula number of molecules can be found.
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Answered by
4
Given ;
mass = 0.4 u
Atomic mass = 40 u
Number of atoms = (Given mass/Atomic mass) × Avogadro constant
= (0.4/40) × 6.023 × 10^23
= 0.01 × 6.023 × 10^23
= 6.023 × 10^21 atoms
________________________
mass = 0.4 u
Atomic mass = 40 u
Number of atoms = (Given mass/Atomic mass) × Avogadro constant
= (0.4/40) × 6.023 × 10^23
= 0.01 × 6.023 × 10^23
= 6.023 × 10^21 atoms
________________________
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Answered by
5
Atomic mass ( Mass of 1 mole ) of Calcium= 40 u.
Given mass of Calcium = 0.4 u
Here is a formula to find the no: of particles.You can use this formula to find the no: of atoms or no: of molecules .
No: of particles = No : of moles × Avogadro no:
No : of moles = Given mass / molar mass
= 0.4 / 40
= 0.01 moles
No: of particles = 0.01 × 6.022 × 10²³
= 6.022 × 10 ²¹ atoms.
PLease mark brainliest .....
Given mass of Calcium = 0.4 u
Here is a formula to find the no: of particles.You can use this formula to find the no: of atoms or no: of molecules .
No: of particles = No : of moles × Avogadro no:
No : of moles = Given mass / molar mass
= 0.4 / 40
= 0.01 moles
No: of particles = 0.01 × 6.022 × 10²³
= 6.022 × 10 ²¹ atoms.
PLease mark brainliest .....
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thanks for marking brainliest
when i looked for helping there were wierd questions
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