CHEMISTRY MIDDLE SCHOOL

A substance X contains 10 gram of calcium carbonate calculate the number of mole of calcium carbonate present in X ​

Answers

Answer 1
Answer:

\LARGE{ \boxed{ \rm{ \red{Required \: answer}}}}

☃️ Chemical formulae ➝ \sf{CaCO_3}

How to find?

For solving this question, We need to know how to find moles of solution or any substance if a certain weight is given.

\boxed{ \sf{No. \: of \: moles = (given \: weight)/(molecular \: weight) }}

Solution:

Atomic weight of elements:

Ca = 40

C = 12

O = 16

❍ Molecular weight of \sf{CaCO_3}

= 40 + 12 + 3 × 16

= 52 + 48

= 100 g/mol

❍ Given weight: 10 g

Then, no. of moles,

⇛ No. of moles = 10 g / 100 g mol‐¹

⇛ No. of moles = 0.1 moles

☄ No. of moles of Calcium carbonate in that substance = 0.1 moles

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Answer 2
Answer: no of the moles calcium carbonate is 0.01

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