Are re, mole calculation waali tension hai? Tum dekho, calcium carbonate ka mole mass 100 g hai, toh 25 g mein 0.25 mole hoga. Par beta, asli cheez hai ki tum balance sheet ki tarah step-by-step likho — maine Ritu ke PDS ki register se seekha hai, ek galti se poora hisaab bigad jaata hai.
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