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Question: Pure oxygen was first made by heating mercury (II) oxide: 2HgO --> 2HgO2.
a) How many grams of mercury and how many grams of oxygen are formed from 45.5 g of HgO?
b) How many grams of HgO would you need to obtain 33.3g of oxygen?
Titration of a .7439g sample of impure Na2B4O7 required 31.64mL of .1081M HCl. Express the results of this analysis in terms in percent
how many moles can be produced from 2.5 moles of Ag2CO3 and final temperature of the calorimeter contents is 23.83°C After dissolution of the salt.
The voltage meter reads +0.63 volts. Write out the reaction equation, then calculate the standard reduction potential of Fresnium.
The overall reaction order for an elementary reaction always equals its molecularity however the overall reaction rate for multistep reaction can only be determined based on experimental data
A chlorine-oxygen compound is found to have a chlorine to oxygen mass ratio of 1.109. Which of the following chlorine to oxygen mass ratios is possible for a different chlorine-oxygen compound
Calculate the ratio of the masses of the buffer components HClO/KClO required to make a buffer with a pH of 7.1
Intravenous medications are oftend administered in 5.0% glucose by mass. what is the osmotic pressure of such solutions at 37 C? assume that the density of the soloution is 1.0 g/mL.
What is the hydronium-ion concentration of a 4.07 10-4 M solution of p-bromobenzoic acid, BrC6H4COOH, for which Ka = 1.00 10-4
Describe the molecule xenon trioxide, XeO3, using four possible Lewis structures, one each with zero, one, two, or three Xe---O double bonds.
What is the molar solubility of PbI2 in water. For PbI2, Ksp=7.9x10-9. You may assume that the ions do not form ion pairs in solution.
What relationship exists between H+ ion concentration and OH- ion concentration? What is the OH- concentration in an aqueous solution where the H+
Which of these products is formed under what is known as thermodynamic control, and explain mechanistically why this product predominates under thermodynamic conditions.
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