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A 50 ml sample of ascorbic solution was titrated to until the first sign of permanent blue/purple colour with 7.706 mM potassium iodite.The titration volumes are shown below. Calculate the number of moles of Ascobic acid in the 50.00 ml Sample. Titration Volumes of KIO3 Initial Buret reading/ml trial 1=12.54 trial 2=8.78 Final buret reading/ trial 1=38.74 trial 2=34.93 Volume of KIO used/ml trial 1=? trial 2=?
If 120.9 mL of water is shaken with a gas at 0.860 atm, it will dissolve 0.00286 g of the gas. Estimate the Henry's law constant for the gas in water in units of g L-1 atm-1.
Define Bonding and Molecule formation, Kn1 knowledge and understanding of atomic and molecular structure, chemical bonding, chemical formulas, chemical equations, mole calculations and the mole concept and the relation between elements of the Peri..
A fully animated PowerPoint presentation explaining the molecular structure of fats, the difference between saturated and unsaturated fats and why bromine can be used to test for fats and how saturated they are.
you have a buffer system made up of equimolar amount of carbonic acid,H2CO3, and sodium bicarbonate,NaHCO3. Write equations to show how this buffer behaves when (a) HCL is added and (b) NaOH is added.
Calculate the percent by mass of calcium carbonate in the rock, assuming that it is the only substance reacting with the HCl solution.
At a pressure of 1.00 atm and a temperature of 20ºC, 1.72 g CO2 will dissolve in 1 L of water. How much CO2 will dissolve if the pressure is raised to 1.35 atm and the temperature stays the same?
A solution is made by mixing 500 mL of .121 M NaOH with 500 mL of .1 M CH3COOH. Calculate the equalibrium concentrations of H+. CH3COOH, CH3COO-, OH- and Na+
A 787 mL gas sample at STP is compressed to a volume of 226 mL, and the temperature is increased to 29?C. What is the new pressure of the gas in Pa.
36.45 mL of 0.11 M hydrochloric acid were added to 36.45 mL of 0.098 M aqueous barium hydroxide. Calculate the theoretical yield of the salt produced.
Find the new volume of the gas sample - What is the new volume of the gas sample
A balloon has a volume of 3.00 liters and a temperature of 56.0 celcius.if the volume increases to 7.00 liters, what is the new temperature in celcius?
Garlic smell is easily noticable due to the compound that is responsible for this is Allicin , when we analysed this compaound and find out molecular formula of molar mass= 486 grams
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