Question

calculate the no of moles of 25 gems of caco4​

Answer 1

Formula for finding no.of moles :

Given mass ÷ molar mass or W/M

• Given mass = 25g

• Molar mass ofCaCO4=40+12+16×4=116 .

According to the question

25/ 116 = 0.21 moles

Answer 2

Answer:

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