WebMolar mass is defined as the summation of atomic mass of all elements present in that compound . Now calculate the molar mass of each compound as follows : a.) FeCl A 2. Now, here we have : Molar mass of FeCl A 2 = atomic mass of Fe + 2 x atomic mass of Cl. = ( 55.845 + 2 × 35.5) g m o l − 1. = 126.8 g m o l − 1 { rounded upto one decimal ... WebSep 29, 2015 · After that I would calculate the moles of NaOH used $$\mathrm{0.1000\ mol/L \cdot 21.60\ mL \cdot 1\ L/1000\ mL = 0.002160\ mol}$$ Then I use this to find the moles of acid present in solution; this is the part I am unsure about.
Solved Experiment 8: Determination of the molar mass and - Chegg
WebAug 7, 2013 · 1 Answer. Sorted by: 5. Your data is not enough to calculate molecular weight. You may have missed the mass of the solid acid you have weighed. Let's … WebThis problem has been solved! 1. Write a balanced equation for the chemical reaction that occurs between aqueous solutions of your unknown acid and... 2. Starting with the … incompetent\\u0027s wu
NaOH Molar Mass: About Substance In Simple Words
WebMar 7, 2024 · Molecular weight of the NaOH = Atomic weight of the Na + Atomic weight of the H + (atomic. weight of the oxygen) Molecular weight of the NaOH= 23 + 1 + (16) = 40. - Now we must express the molecular weight of the sodium hydroxide in molar mass. - The molar mass of the sodium hydroxide is 40 g/mol. Note: WebThen to determine the molar mass, the calculation is as follows: 7.72 g HA 1L soln L soln 0.12 mol = 64.33 mol 64-8 HA A technique known as half-titration can now be used to determine the pk of the weak acid. In this experiment, the half-titration point will exist when you have added half the volume of NaOH needed to fully titrate the acid. WebTo determine the mass of KHP required for the titration, you should first determine the number of moles of NaOH in approximately 15 mL of your titrant. Let’s say that your NaOH titrant concentration is 5.00 M. How many moles of NaOH would be present in 15.0 mL? 5.00 moles/L X 0.0150 L= 7.50 X10-2 moles of NaOH. incompetent\\u0027s zw