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Standard solutions of calcium ion used to test for water hardness are prepared by dissolving pure calcium carbonate, CaCO3, iFor convenience, one form of sodium hydroxide that is sold commercially is the saturated solution. This solution is 19.4 M, wWhat volume of 0.616 M NaOH solution would be required to neutralize 26.7 mL of 0.304 M HNO3 solution? Volume mL

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molarity = 5.42= n cont 5.06 (OH) M an=27.4252 moles of Naolt golt Weight 2-(27.4252 )*(409 – Machi 11.o 1097.008 grams WeighM(NaOH) x Varaolt = M (HNO3) * VANO HNO3 (0.616 M) x Viao H = (0.304)x (26.7mL) VNGUH NaulH = 13. 1766 2337 m Liu

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