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Show the orbital-filling diagram for (nitrogen). Stack the subshells in order of energy, with the lowest-energy subshell at the bottom and the highest-energy subshell at the top.
Balance the following redox equation in acid: VO2^+(aq) +Zn(s) --->VO^2+(aq)+Zn^2+(aq)
Calculate the pH of a solution made by dissolving 2.89 g of sodium fluoride and 17.1 mL of 0.309 M hydrofluoric acid in enough water to make 177 mL of solution.
What was the temperature of the sample after heating. Please show work I've asked this question before and I'm getting mixed answers.
calculate the volume of a sample of carbon monoxide at -21degc and 359 torr if it occupies 3.65 l at 298 k and 758
If you know the answer please give units :) Part A: The reactant concentration in a zero-order reaction was 5.00×10^?2M after 140s and 3.00×10^?2M after 300s. What is the rate constant for this reaction? -> For this I got that 1.25x10^-4M/s, whic..
What is the equivalent weight of (MnO4). How many equivalents of electrons were delivered to the unknown soln
placed in 1.00*10^3 g of water at 25C. final temp of this mixture was 26.3C. What is specific heat of metal?
how many grams of cl2 can be prepared from the reaction of 15.0g of mno2 and 30.0g of hcl according to mno2 4hcl -gtgt
If the pH of such a phosphate-containing solution were gradually lowered by addition of HCl or some other strong acid, what three protonated phosphate species would be generated? (Specify the chemical formula and name of each.)
DNA is thought to be the chemical compound responsible for the process of heredity. A sample of DNA was found to have density 1.10 g/cm^3 and its molecular weight was estimated to be 3.04 x 10^8 g. What is the average volume occupied by one DNA mo..
The density of air at 19 °C is 0.0020 g/ml at about atmospheric pressure. Although air is a mixture, we can take the average molecular weight of the molecules in air to be 27.37 amu. (a) What is the mass of air in the bottle? (b) By how much does ..
the equilibrium constant kc for the following reaction is 2.18 106 at 730degc.h2g br2g 2 hbrgstarting with 3.10 moles
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