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Given the following information: Mass of ascobic acid present in one tablet= 500mg preparation of vitamin solution: Vitamin Tablet= 1.5; weigh boat+ Vitamin tabet clushed= 5.2; weigh boat after transfer of crushed tablet= 3.8; Calculated mass of crashed tablet =1.4 preparation of patassium iodate solution: weigh boat + KIO3(s)=1.01; weigh boat after transfer of KIO3(s)=3.9; Calculated mass of KIO3(s)= 2.9 Titration volumes of KIO3: Volume of KIO3 used= tria1=20.88 trial 2= 20.25 a)Calculate the concentration of the potassium iodate solution in mol/L b) use the two titrations to calculate the average moles of iodate ions added to ascobic acid solution c) calculate the average moles of ascobic acid in the pipetted sample used for titration d)Calculate the average moles of ascobic acid in the crushed tablet.
How many moles of oxygen are combined with 4.20 moles of chlorine atoms in C2O7?
A thief plans to steal a gold sphere with a radius of 30.0 cm from a museum. If the gold has a density of 19.3 g/cm^3, what is the mass of the sphere?
Calculate the concentration of bicarbonate ion, HCO3 -, in a 0.010 M H2CO3 solution that has the step wise dissociation constants Ka1 = 4.3 × 10-7 and Ka2 = 5.6 × 10-11.
Sketch the typical stress-strain curve for a metal and a ceramic. Using the sketch, indicate the following properties; elastic and plastic regions, yield points, Ultimate Tensile Strength (UTS), strain energy and fracture toughness.
Chemical reaction calculations, 1. Unbalanced equation SOCL2(1) + H2O(1) --- SO2(g) + HCl(g). How many molecules of H2O can 35.0 grams of thionyl chloride remove?
a solution is prepared by adding 40.3 g of Mg(NO3)2 to 127 g of water. Calculate the mole fraction and molality of magnesium nitrate in this solution
Calculate the number of grams of solute that would be needed to make each of the following solutions
If a 0.350g tablet of NaOH is added to 100ml of 0.6 M H3PO4, how much water will be produced?
If a buffer solution is 0.440 M in a weak acid (Ka = 1.0 × 10-6) and 0.230 M in its conjugate base, what is the pH?
Explain why the C=C stretching mode gives rise to a rather weak IR band in 1-methylcyclohexane
A 0.479 g sample of nitrogen, oxygen or neon gas occupies a volume of 265 mL at 157 kPa and 20?C. What is the molar mass and identity of the gas
Draw structural formulas for all of the structural isomers of C4H10, C5H12 and C3H7Cl.
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