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Write equations that show the process for the first two ionization energies of tin. Express your answer as a chemical equation. Identify all of the phases in your answer
Naturally occurring gallium consists of two isotopes. One of those isotopes is 71Ga with an isotopic mass of 70.9247050 amu and an abundance of 39.892%. What is the mass number of the other isotope
A solution of methanol, CH3OH, cotains 55.0 grams of methanol in 100. mL of water solution. What is the molarity of methanol in the solution?
Using the following data collected, calculate the molar mass of the unknown acid. Include calculation for each trial and the average.? Mass unknown acid
How many grams of HCl are in a quart of muriatic acid? The muriatic acid density is 1.18 g/mL and is typically 36.5% HCl by mass.
Joe makes up a 0.1M solution of Potassium Fluoride. He uses a pH meter to test the pH of the solution. What is the most reasonable value he would find?
The activity of an isolated sample of gas obtained from a basement containing radon-222 was found to be 8 pCi/L. This isotope has a half-life of 3.8 days. If no additional radon-222 entered the sample, how long would it take for the activity to de..
The compound known as butylated hydoxytoluene, abbreviated as BHT, contains carbon, hydrogen, and oxygen. A 1.376 g sample of BHT was combusted in an oxygen rich environment to produce
the volume of a sample of oxygen gas collected over water is 258 mL at 27 degrees C and 620.0 torr. Calculate the volume in milliliters of dry oxygen gas at STP. (the vapor pressure of water at 27 degrees C is 26.7 torr.)
If you have 4.14 g of caffeine dissolved in 61.0 mL of water and the extraction coefficient between H2O and CH2Cl2 is 21.51. How many grams of caffeine will extract into the CH22Cl2 layer if you use 96.9 mL
How will you prepare the following solutions from 6.0 M solutions of acetic acid and ammonia. Give exact details. Assume that a 10-mL graduated cylinder.
Assume the solubility product Mg(OH)2 is 1.7 x 10-11 at a certain temperature. What minimum OH- concentration must be attained ( for example adding NaOH) to decrease the Mg2+ concentration in a solution Mg(NO3)2 to less than 1.4 x 10-11M
Which of the following is less soluble in hexane, ethanol or CCl3H(l). Don't try to type the subscripts, just use letters and numbers.
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