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What is the chemical formula for the compound containing one nitrogen atom for every three iodine atoms.
A radioactive isotope of element X has a mass number of 79. The most stable isotope of this element has a mass number of 72. Explain the most likely mode of decay for the radioactive isotope is
suppose 7.70g of methane is mixed with 54.7g of oxygen . Calculate the maximum mass of water that could be produced by the chemical reaction
Chlorine has two stable isotopes Cl-35 (34.968853) as well as Cl-37 (36.965903). If the isotopic abundance of Cl-35 is 75.77% Explain what is the average atomic weight of Cl given on the period table
The normal boiling point of acetone is 56.5°C. At an elevation of 5300 ft the atmospheric pressure is 630. torr.a. What would be the boiling point of acetone (AHvap = 32.0 kJ/mol) at this elevation?
The ultimate source of all chemical products is the earth (including its water and atmosphere). Sulfuric acid is a good example. It is made from burning sulfur in air to make sulfur trioxide then reacting the sulfur trioxide with water.
Consider the weak acid, with a Ka = (4.40x10^-4). In the titration of 25.00 mL of a 0.01000 M solution of the acid with 25.00 mL of a 0.01000 M solution of NaOH
An open flask contains .200 mol of air. Atmospheric pressure is 745 mm hg and room temperature is 68 degrees Fahrenheit. How many moles are present in the flask when the pressure is 1.10 ATM and the temperature is 33 degrees Celsius
Question- Calculate the mass of barium chloride you need to make a 0.200m barium chloride solution with 100.0g of water. Please show the set up and full work of how to get the answer.
Problem- in the following reaction 451.4g of lead reacts with excess oxygen forming 366.5g of lead (ii) oxide. Calculate the percent yield of the reaction.
The pH of a 0.500 solution of an aqueous weak acid (HA) is 2.30. Calculate the Ka for the weak acid.
Ethylene glycol, C2H4(OH)2 is a colorless liquid used as automobile antifreeze. If the density at 20 degrees celsius of a 4.028 m solution of ethylene glycol in water is 1.0241 g/ml, what is the molarity of the solution? The molar mass of ethylene..
Calculate the concentration of ions in the following saturated solutions. Al3+] in Al(OH)3 solution with [OH -] = 2.6 10-9 M
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