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Question- Briefly explain whether the following procedural errors would result in either an incorrectly high or incorrectly low calculated percent Cu recovery for this experiment. A) This solution was not basic when it was heated in part 3. (In part 3 I converted Cu(OH)2 to CuO). B) A slightly blue solution was decanted from Cu in part V. (in part 5 I reduced Cu(H20)6 ions with zink) C) In part 5 the water in the beaker boiled away, exposing the evaporating dish to excess heat (same as above).
Explain the process and each step
What is the term for the process of a vapor moving into(or out of) the solid phase without going thru the liquid phase
Calculate the mass of sodium acetate that must be added to 500.0mL of 0.200M acetic acid to form a pH = 5.00 buffer solution.
Calculate the urms , uavg , and ump velocities for CH4 at 600. K. The molecular weight of methane is 16.043 g mol-1. Show your cancellations of proper units for at least one calculation
atomic absorption spectrometer was used with the method of standard additions to determine the concentration of cadmium in a sample of an industrial waste stream. For the addition, 10 uL of a 1000 ug/mL Cd standard was added to 10 mL of solution.
When heated, potassium chlorate decomposes to yield oxygen and potassium chloride. Calculate how much heat is needed to yield 31.8 g oxygen by decomposition of the requisite amount of potassium chlorate.
What is the molarity of a solution of vinegar that is 5.00 % by mass acetic acid (CH3CO2H) and has a density of 1.01 g/mL.
what are is the value of the equilibrium constant at 25 C for the reaction between each of the following? Ni(s) and Ag+ (aq)
Problem- Experimentally, acetate buffer HC2H3O2-C2H3O2^- can be prepared in different ways. Calculate the approximate pH of an acetate buffer solution prepared by mixing equal volumes of 0.10 M HC2H3O2 and 0.10 M NaC2H3O2 (Ka, HC2H3O2 = 1.8 x 10^-5..
How much ice (in grams) would have to melt to lower the temperature of 352 of water from 26 to 5. (Assume the density of water is 1.0)
The flame produced by the burner of gas (propane)grill is a pale blue color when it mixes with propane(C3H8) to burn it completely. For every gram of propane that flows through the burner, what volume of air is needed to burn it completely?
The element Uranium found on earth is most likely formed by which nucleosynthetic process
A solution contains 6 % of NaCL. How many milliosmoles are represented in 478 mL of the solution? (NaCl m.w. 58.5).
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