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State the full ground-state electron configuration for the following. State answer using the format 1s2 2s2 2p6 for 1s22s22p6.)
(a) Br
(b) As
(c) Mg
Use the results of your calc. in analysis and int. item 2 and the mole ratio from equation in analy. And int. item 3 to determine the moles of vinegar.
How many mL of 1.74 M HCl solution can react with 71.5 g calcium carbonate? CaCO3(s) + 2 HCl(aq) ? CaCl2(aq) + H2O(l) + CO2(g)?
A gas sample was collected over water at 25.3 0C. The total pressure is determined to be 0.97 atm. What is the partial pressure of the gas that was collected?
Calculate how many grams of phosphorus are present in 2.68 moles of phosphorus pentachloride(PCl5) and also determine the numbers of moles of chlorine are present in 3.71 grams of phosphorus pentachloride?
If 27.0 mL of 0.0200 M KMnO4 were required to titrate a 0.425 g sample of K3[Fe(C2O4)3] * 3H2O, what is the % purity of the complex
A chemist ran the reaction and obtained 5.05g of ethyl butyrate. What was the percent yield
Identify each of the following as a substance that is part of the citric acid cycle, electron transport, or both:
n2h4l o2g reverse reaction arrow n2g 2 h2olcalculate the k value associated with the reaction at 25 degrees celcius
a metal sample weighing 45.0 grams and at a temperature of 99.1 degrees celsius was placed in 38.6 grams of water in a
What is the net ionic equation for the reaction of aqueous silver nitrate with aqueous potassium chloride. include phases.
The decomposition of NO2 by the following reaction at some temperature proceeds at a rate 5.40 x 10-5 mol NO2/L.s when [NO2] = 0.01144 mol/L.
The amino acid L-histidine has three acid-base equilibria, with pKa values of 1.78, 5.97, and 8.97. Plot the fraction of solute species present in solution in the pH range 0 to 14.
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