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Write the formulas for each of the following ions and compounds: (a) tetrahydroxozincate(ll) (b) pentaaquachlorochromium (lll) chloride (c) tetrabromocuprate(ll) (d) ethylenediaminetetraacetatoferrate(ll)
A white solid remains in centrifuge tube after acetone extraction-it fizzes when hydrochloric acid is added suggesting sodium carbonate was formed- How did it form? Write a balanced equation for the formation?
In a flame test in the lab, the compound Barium Chloride and Barium nitrate have ions, what are the cations and anions for both.
Compute the cell potential(E) after the reaction has operated long enough for the [Al3+] to have changed by .60 mol/L. suppose T=25 C
Consider the following equilibrium process at 686°C: CO2(g) + H2(g) ? CO(g) + H2O(g) The equilibrium concentrations of the reacting species.
Find out the exact significant figures for each of the values - Indicate the number of significant figures
Compute the activation energy for the flashing process. When At 29 o C the average rate is 3.3 flashes every 10 seconds; at 23 degree Celsius the average rate
In the welding shop of the XYZ Manufacturing plant you have a cylinder with a volume of 548L of a compressed gas, and the pressure gauge shows 238 psig at the room temperature 25 C.
A gas mixture is made by combining 7.9 g each of Ar and Ne and an unknown diatomic gas. At STP the mixture occupies a volume of 18.73 L.
Considering the mixture of the two compounds and range of the melting points, the reason recrystallization was difficult was due to a broad melting point range.
A sodium thiosulfate, Na2S2O3, solution has a concentration of 0.150 M. An end point for this titration occurs when 32.89 mL of the sodium thiosulfate solution reacts with 24.80 mL of I2 solution.
A sample of 2.376 g ether (The compound known as diethyl ether [(C2H5)2O], commonly referred to as ether, contains carbon, hydrogen, and oxygen) was combusted in an oxygen rich environment to produce 2.887 g of H2O (g) and 5.643 g of CO2 (g).
What will be the likely effect of clearing forests and converting them to grasslands and crops on (a) the earth's reflectivity (albedo) and (b) the earth's average surface temperature?
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