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Tartaric acid,H2C4H4O6,has two acidic hydrogens. The acid is often present in wines and precipitates from solution as the wine ages. A solution containing an unknown concentration of the acid is titrated with NaOH. It requires 24.65 mL of 0.2500 M NaOH solution to titrate both acidic protons in 50.00 mL of the tartaric acid solution. Write a balanced net ionic equation for the neutralization reaction, and calculate the molarity of the tartaric acid solution.
A mixture of sand and iron pieces weighs 53.29 g. Using a magnet, the iron is removed and weighs 15.63 g. What is the percent composition of sand in the mixture?
A solid mixture consists of 51.0 g ofKNO3 (potassium nitrate) and 9.0 gofK2SO4 (potassium sulfate). The mixture is added to 130g of water. If the solution described in the introduction is cooled to 0 degrees celsius
The combustion reaction produces 2.3x104 J of heat energy. As the gaseous products expand they push against a piston which increases the cylinder volume to 55.0 L.
Utilizing the metallic crystal is known to be a cubic closes packed structure, find out the density of the metal in g/cm3 using 900nm.
Consider a distillation column that is fed 1000 kg/hr of an equimolar mixture of benzene and cyclohexane. Theof the benzene distillate stream is to contain 90 % with a benzene mole fraction of 0.95.
Identify the element oxidized and reduced in the following redox rxn. Also indicated the number of electrons lost/gained by each atom.
Draw both staggered and eclipsed conformations of ethane as Newman projections and as dash-and-wedge drawings. Second, state the two theories for the attempt to explain the lower potential energy of staggered conformations of ethane compared to ec..
calculate the pH and concentration of all species present assuming that the activity coefficients are equal to 1.0 for all species
Consider a linear string of five hydrogen atoms, H^5. Determine the net overlap for each molecular orbital and classify it as bonding, nonbonding, or anti-bonding.
Explain what is the final temperature of the block after the evaporation of the alcohol. Presume that the heat required for the vaporization of the alcohol comes merely from the aluminum block as well as that the alcohol vaporizes at 25.
From the time the mass of the flask is first measured until the time it is finally measured, it is handled a number of times with oily fingers. Does this lack of proper technique result in the molar mass of the vapor in the flask being reported as..
Explain the concentration of 2, 5-dimethylfuran in blood is directly proportional to the number of cigarettes smoked per day. Individuals who have a 2, 5-dimethylfuran concentration above 0.024 parts per billion (ppb)
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