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Write the condensed electron configurations for the following atoms, using the appropriate noble-gas core abbreviations. In order of increasing orbital energy. a) U b) Pb
A student wishes to make a soution of lithium hydroxide (LiOH) to a strength of 1.7 mol/L. If he is going to make a total volume of 1.5 L
How many grams of NO could be formed from a mixture of 44.7 g of NH3 and 42.7 g of O2? 2. How many grams of NH3 would remain?
the properties of pure water that had been boiled and condensed and the properties of pure water that has been frozen and then melted? Explain please.
You need to make an aqueous solution of 0.180 M sodium sulfate for an experiment in lab, using a 250 mL volumetric flask. How much solid sodium sulfate should you add ?
Find the fraction of association of 0.100 molar solution of Hydrazoic Acid. Ka = 2.20x 10^-5.
The experiment done was the synthesis of p-chlorophenoxyacetic acid. I have lab questions that I am unsure how to do. Please help. 1. How many moles of p-chlorophenoxyacetic acid should form in this reaction?
The Al2O3 does not react. If the sample residue weighs 2.456 g, what is the mass fraction of Fe2O3 in the original sample?
A unknown liquid is insoluble in water and soluble in cyclohexane and alcohol with a boiling point of 110 C What is the substance?
This buffer is to be prepared by mixing 25.0 mL of 0.1 M HCl with the correct mass of solid sodium acetate. You will determine the mass of solid sodium acetate needed.
The decomposition of N2O into N2 and O in the presence of gaseous argon follows second order kinetics with K= (5.0x10^11 Lmol^-1s^-)e^-29000K/T. What is the energy of activation of this compound
In a basic aqueous solution, chloromethane undergoes a substitution reaction in which Cl- is replaced by OH-: CH3Cl(aq)+OH-(aq) CH3OH(aq) + Cl-(aq)
What is the change in internal energy (in J) of a system that absorbs 0.836 kJ of heat from its surroundings
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