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Explain why in an aqueous electrochemical cell, nitrate ions never react at the anode, but nitrite ions do
A 47.0 mL sample of gas in a cylinder is warmed from 28 degrees Celsius to 91 degrees Celsius. What is the final temperature?
How much heat is evolved when 3ll.5g of ammonia (NH3) gas condenses to a liquid at its boiling point? ^Hvap= 23.3 kj/mol.
Calculate the composition of the exhaust gases in kg/hr and calculate the percentage of benzene that is partially combusted.
A piston has an external pressure of 11.0 bar . How much work has been done if the cylinder goes from a volume of 0.150 liters to 0.570 liters.
Assuming no change in volume, How much will the pH of the Acetic acid change? How much will the percent ionization of the acetic acid change
The Space Shuttle usesaluminum metal and aluminum perchlorate in its reusable boosterrockets. The products of the reactionare aluminum oxide, aluminum chloride, nitrogen oxide gas, andsteam:
Sodium methoxide CH3ONa is a weaker base than BuLi or nBuLi butyllithium. Recommend an explanation why it is not surprising to find that a weaker base is sufficient to prepare the Horner-Emmons-Wittig reagent.
An unknown amount of water is mixed with 370mL of a 6M solution of NaOH solution. A 75mL sample of the resulting solution is titrated to neutrality with 50.7mL of 6M HCl.
Tums calcium carbonate reactswith stomach acid ( HCI) according to the reaction below. One tablet of tums contains 500.0 mg CaCO3. If one tablet of tums is addedto 20.0 mL 0.100M HCI, how many grams of CO2 gas are produced?
Find the mass of the substance and the volume of a gas in a reaction - determine the mass of solid ammonium nitrate that must be used to obtain 0.145 L of dinitrogen oxide gas at STP.
In calibrating a drop counter, a student had an initial buret reading of 0.41 mL and a final buret reading of 4.71 mL after dispensing 75 drops from a buret.
choose from among the following: disulfide bond, salt bridge, hydrogen bonding or dispersion forces. A) glutamic acid and lysine B) tyrosine and lysine C) Ile and Ala D) two cysteines
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