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How many electrons in a ground-state krypton atom are in orbitals labeled by ml = 1
a 290ml flask contains pure helium at a pressure of 756torr . a second flask with a volume of 480ml contains pure argon
A 50 mL volume of the solution with an initial pH of 6.5 was titrated with 0.01 M HCl and after the addition of 9.8 mL of titrant, the solution pH was 4.8. Find the concentrations of the acetate and phosphate species that were present in the initi..
Write the chemical reaction for the formation of gas. What are the products of the reaction? Write chemical compounds' formula and name each product?
Determine the mass of Cr 3 + in the original solution if The total mass of the precipitate = 49.6 .
If a molecule containing only oxygen and nitrogen is 36.8% Nitrogen by mass, what is the emperical formula
1. You have in your possession an acid made up of 68.1% oxygen, 29.8% nitrogen, and the rest hydrogen. Assuming that the molecular formula is the same as the empirical formula, determine the formula of your acid.
A 1.95 g sample of ascorbic acid is titrated with a 0.89 M red dye. What volume of red dye is required to reach the endpoint. molar mass of red dye= 267.08g/mol; molar mass of ascorbic acid=176.12g/mol
What are Delta G and K at 600 degrees?
draw and name all monochlorinated products of 2,2,3-trimethylpentane. Predict the percentage of each product. Would you obtain the same major product if you were to use bromine in place of chlorine
a gas has a volume of 534 ml at 25 degrees celsius and under a pressure of 73.0 cmhg. correct the volume to standard
Element Z has two naturally occurring isotopes Z-79 ( 78.918 amu) and Z-81 (80.916 amu) . Calculate the atomic mass of element Z given the abundance of the Z-81 is 49.31 %
a large evacuated tank whose volume is 10000ft3 is to be filled with carbon dioxide gas at atmospheric pressure
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