Question

Can someone help please​

Answer 1

The mass is X g

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percentage is X/6.50*100 =2.2%

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X=0.143g

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| The mass is 0.143g |

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Answer 2

Let the mass be X g

percentage = X/ 6.50 * 100 =2.2%

X= 0.143 g

The mass is 0.143 g