Chemistry, 20.09.2019 23:10 juliopejfuhrf7541
The first titration is done to standardize the silver nitrate solution. so first determine the number of moles of kcl used. then, use the chemical reaction kcl+agno3→agcl(s)+k++no3− to determine the moles of agno3 (notice the 1: 1 ratio). next, calculate the molarity of agno3 using the volume, 61.9 ml . the second titration is done to find the nacl content in the chip. since only 46.9 ml of agno3 was used in this titration, you must find the moles of agno3 in that volume. then, use the chemical reaction agno3+nacl→agcl(s)+na++no3− to determine the moles of nacl (notice the 1: 1 ratio). next, convert moles of nacl to grams using its molar mass. finally, take the mass of salt (which is for the given mass of filtrate), and scale it per serving.
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