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Which of the following reagents could be used to separate the two anions in a solution of sodium sulfide and sodium acetate? Select all that apply.
a. sodium chlorideb. magnesium chloridec. potassium chlorided. sodium acetatee. copper(II) chloride
Calculate the number of moles of gaseous nitrogen contained in a sample of 227 mL of gas saturated with water vapour at 20 °C and 90.0 kPa.
Classify the substances according to the strongest solute-solvent interaction that will occur between the given substances and water during dissolution
Knowing the complete genome of an organism doesn't necessarily tell you about the nature of all proteins in the organism. Explain why
with a solution in them connected by a liquid salt bridge junction filled with KNO3. In one solution you have a graphite electrode that is connected with a wire to a copper electrode in the second soution. The soution in contact with the graphite ..
What is the theoretical yield of hydrazine in grams, prepared from the reaction of 100.0 mL of 0.690 M NH3
why was the titration performed by the addition of permanganate solution to oxalate solution and not the other way
if you burn 10.00g of octane. if the temperature is 500K, and you have an expansion of 1.00 atm, how much work in joule can be done by the system if the octane is completely converted to CO2 and water vapor. what will be the enthalpy change
Complete and balance the molecular equation, including phases, for the reaction of aqueous copper(II) chloride, CuCl2, and aqueous potassium phosphate, K3PO4.
One mole of an ideal gas undergoes an isothermal reversible expansion, doing 1 kJ of work and doubling the volume. What is its final temperature? How much heat was added to the gas
Construct a Born-Haber cycle for the formation of the hypothetical compound NaCl2, where to sodium ion has a 2+ charge
Calculate the delta Hrxn for the following equation- 4KNO3(s) - - > 2K2O(s) + 2N2(g) + 5O2(g)
Calculate the energy required and wavelength required to move an electron from the n=1 to n =1x10-12. Explain why this transition is not feasible
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