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If a temperature scale were based on the freezing point (5.5 C) and boiling point (80.1 C) of benzene and the temperature difference between these points was divided into 50 units (called X), what would be the freezing and boiling points of water in X?
A gaseous mixture of O2 and N2 contains 38.8 % nitrogen by mass. What is the partial pressure of oxygen in the mixture if the total pressure is 405 mmHg
what is a good conductor at high temperature and a poor conductor at low temperature? YBa2Cu3O7 GaAs S Cu
What is the PH after .15 mol of NaOH is added to .050 mol of propanic acid and ,080 M of sodium propanoate with a ka of 1.3x10^.5
From a purely statistical standpoint -considering only the number of hydrogens on a particular carbon that could be lost from the intermediate carbocation
What is the percent purity of the calcium hydroxide if the titration requires 21.42 mL of the acid to reach the endpoint
When the reaction that occurs finally ceases, what will be the mass of unreacted copper in the bar? What will be the mass of silver metal that "plates out" of solution (that is, what mass of silver metal is produced by the reaction)
what volume of a 0.400 mM solution of nickel (II) acetate (FW 247.7 g/mol) is required to provide 20mg of nickel
23.5 g sample of pure iron at 66°C is dropped into 89 g of water at 25°C. What is the final temperature of the water-iron mixture?
If you have 500 ml of 10% SDS solution, how much SDS needs to be weighed out for 10% at 500ml
A gas contains 17% O2, 11% CO2 and 72%N2. It is at 1.013 *105 Pa pressure. Calculate the partial pressure of each component
A soln was made by dissolving 5 g of sodium iodide in enough water to make 500mL of soln. What is the expected percent transmittance for this soln?
Titanium occurs in the magnetic mineral ilmenite (FeTiO3), which is often found mixed up with sand. The ilmenite can be separated from the sand with magnets. The titanium can then be extracted from the ilmenite by the following set of reactions
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