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2 years ago

How many moles are in 5.77 grams of calcium

Chemistry

1 answer:

AnnyKZ [126]2 years ago

8 0

The number of moles that are in 5.77 grams of calcium is ( $8.677*10^{22}$ )

From periodic table, <em>Avogadro's number of atom of calcium has a mass approximately ( 40.1 g)</em>

Given:

Mass of calcium= 5.77 grams

Number of calcium atom = $\frac{5.77g}{40.1g}$ × ( Avogadro's number)

(Avogadro's number= 6.022 × 10^23 mol $^{-1}$

Number of calcium atom= $\frac{5.77g}{40.01g}$ × 6.022 × $10^{23}$ $mol^{-1}$

= 8.677× 6.022 $10^{22}$

Therefore, number of moles that are in 5.77 grams of calcium is (8.677 × 10^22)

Learn more at: brainly.com/question/13314627

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