Class notes
Chemistry Numericals work for 9th grade
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### **Numerical Problems in 9th Class Chemistry** **1. **Mole Concept**: - **Mole**: The mole is a fundamental unit in chemistry that represents (6.022 times 10^{23}) entities (atoms, molecules, ions, etc.). - **Formula**: ( text{Number of moles} = frac{text{Given mass}}{text{Molar mass}...
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