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Suppose that you titrate a 3 g sample of orange juice and it turns out to contain only 95.5mg of vitamin C. Further, it took 32.45mL of DCP solution to reach the end point of the titration. Next, you boil a 3 g sample of orange juice for 15min and then titrate it, with the end point occurring after only 6.50mL of DCP solution is added. What percentage of the vitamin C was destroyed in the boiling?
Purification of nickel can be acheived by electrorefining nickel from an impure nickel anode onto a pure nickel cathode in an electrolytic cell
How do I determine the concentration of 2 separate acids in a solution of water if I know the overall pH of the solution? There exists both formic acid and acetic acid in a 1 liter solution of water. The overall solution pH is stated as 4.0 and it ..
What is the heat change in J associated with 15 g of solid ethanol at -177 oC changing to gas at 146 oC?
Calculate the mass of ice at -15°C that must be added to cool the water to 10°C after thermal equilibrium is achieved. To find the mass of water use the density of water = 1.0 g/mL.
Plan and Design Lab: To Determine the water of crystallization in hydrated copper (2) sulphate. Hence determine the formula CuSO4.xH2O.
determine the volume of .450m napo4 is needed to precipitate all the leadii ions from 190.0ml of .550m leadii
The slope of the linear regression line was 2.78 (mV/nM). What are the signal limit of detection and the concentration detection limit, respectively (to 2 s.f. each). Signal detection limit
Why does surface complex formation with a weak acid lead to a relative maximum in the extent of surface complex formation (adsorption) at a pH which is usually near the value of -log acidity constant of the weak acid (pKHA)
What is the molecular formula for the alkane with 39 carbon atoms? What is the molecular formula for the cycloalkane with 38 carbon atoms?
Consider the following function. f(x) = x^3 ln x b) Use l'Hospital's Rule to determine the limit as x ? 0+, c) Use calculus to find the minimum value., d) Find the interval where the function is concave up.
If 20.0 ml of glacial acetic acid (pure ) is diluted to 1.20 L with water, what is the of the resulting solution. The density of glacial acetic acid is 1.05.
A water sample is suspected to be contaminated by iron (III) ions. How could you determine if the sample is really contaminated
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