JEE Main 2026 Chemistry question
For the given reaction; CaCO_3+2HCl\rightarrow CaCl_2+H_2O+CO_2 If 90 g is added to 300 mL of HCl which contains 38.55% HCl by mass and has density 1.13 g mL⁻¹, then which of the following option is correct? Given molar mass of H, Cl, Ca and O are 1, 35.5, 40 and 16 g mol⁻¹ respectively.
Answer: (1)
Solution
Mass of HCl solution = 339 g, mass of HCl = 130.68 g (3.58 mol). Moles of CaCO3 = 0.90 mol requiring
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