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For each of the following positive ions use the concept that a chemical compound must have a net charge of zero to predict the formula of the simple compounds that the positive ions would form with Cl-, S2-,N3-
a. K+
b. Mg 2+
C. Al3+
D. Ca2+
e. Li+
If a temperature scale were based on the freezing point (5.5 degrees celsius) and boiling point (80.1 degrees celsius) of benzene and the temperature difference between these points was divided into 50 units (called degrees X), what would be the f..
For the reaction 2Mg(s) + O2(g) ? 2MgO(s), how many moles of O2 are required to react completely with 0.0232 moles of Mg
What is the molarity of 0.0250 liters of a solution containing 7.50 grams of a compound whose molar mass is 152.8 g/mole
A reaction has a rate constant of 1.21×10-4 at 25 degrees C and 0.232 at 79 degrees C. The activation barrier for the reaction is 122 KJ/mol. What is the value of the rate constant at 18 degrees C
Enough of a monproctic acid is dissolve in water to produce a 0.0147 M solution. The pH of the resulting solution is 2.31. Calculate the Ka for the acid.
The reusable booster rocket of the U.S. space shuttle employs a mixture of aluminum and ammonium perchlorate for feul. the chemical reaction that occurs is
Calculate the freezing point and boiling point of a solution of 383 g of glucose dissolved in 400 g of water
Ideally what should the ratio between the three slopes (AlCl3 slope= 483.0 , CaCl2 slope= 421.4, and NaCl slope= 181.9) be? What are your actual experimental ratios?
Assuming that a particular individual's stomach contains 1 quart of 0.1 M HCl, and that an antacid tablet contains as its active ingredient 500 mg of calcium carbonate, what would the final pH of this individual's stomach contents be after taking ..
Explain What is meant by industrial nitrogen fixation. What is produced during this process
Caculate the mass of KHC8H4O4 (molar mass= 204344 g/mol) that reacts with 15 mL of the NaOH solution (0.16 molar solution of NaOH). Express this mass KHC8H4O4 to the correct number of significant figures.
nitrogen dioxide no2 cannot be obtained in a pure form in the gas phase because it exists as a mixture of no2 and n2o4.
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