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A hydrochloric acid solution is standardized using 0.500g of sodium carbonate, Na2CO3. Find the molarity of the acid if 29.50mL are required to reach a phenolphthalein endpoint.
2 HCI(aq) + NaCO3(s) -right arrow 2 NaCl(aq) + H2O(I) + CO2 (g)

A 10.0 mL sample of household ammonia solution required 18.15 mL of 0.320 M HCI to reach neutralization. Calculate(a) the molar concentration of the ammonia and (b) the mass/mass % concentration of ammonia (17.04g/mol). given a solution density of 0.990 g/mL
HCI (aq) + NH3(aq) -right arrow NH4Cl(aq)

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Category:- Chemistry
Reference No.:- M91062356

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