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How many grams per liter of sodium acetate would need to be dissolved to produce a pH of 8.00 in a hydrolosis reaction between the acetate ion and water?
How many kJ of heat are needed to completely vaporize 1.30 moles of The heat of vaporization for water at the boiling point is 40.6 kJ/mole.
What is the molar mass of a gas that occupies a volume of 1.5000 L at a pressure of 356 mmHg, a temperature of 22.5 degrees C, and weighs 0.9847 g
Using the following spectral information, determine the name of unknown organic compound A. For full credit, explain why/how the spectral information led you to your answer.
At room temperature (20^circ rm C), milk turns sour in about 63 hours. In a refrigerator at 3^circ rm C, milk can be stored three times as long before it sours. Estimate the activation energy of the reaction that causes the milk to sour.
a 10 ml sample of an unknown aqueous nickel 2 solution was treated and found to produce 0.0532g of nidmg2 precipitate.
the decomposition of a compound in carbon tetrachloride has a rate constant of 7.49 x 10-3 m-1 min-1. if we start with
Write balanced complete ionic equation for the following equation: Express your answer as a chemical equation.
An unknown mass of each of the following substances, initially at 22.0^circ C, absorbs 1950 J of heat. The final temperature is recorded as indicated. Find the mass of each substance. a. Pyrex glass (T_f=55.1^circ C. B.sand (T_f=62.3^circ C). C.et..
A steel tank has a volume of 438 liters and is filled with 0.885 kg of Oxygen. Calculate the pressure of oxygen at 21 degrees Celsius.
Metallic chromium can be made by the electrolysis of molten CrCl3. What mass of Cr is formed by passing a current of 7.44 A through molten CrCl3 for 4.10 days? Use F = 96,500 C/mol for Faraday's constant.
Zn(s) + 2AgNO3(aq) --> 2Ag(s) + Zn(NO3)2(aq) When 216 g of silver was produced, determine the mole(s) of silver nitrate would be required.
how many milliliters of h2o vapor measured at 291. degc and 724. torr are formed when 49.0 ml of nh3 at 815. torr and
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