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Write the shorthand electronic configuration, the # of unpaired electrons, and whether it is paramagnetic or diamagnetic for the following elements or ions.
a. B
b. Zr
c. Ag+
d. Se2-
Which ion or element has the smallest radius for the following groups?
a. Li, Li+, or Li-
b. Ge, As, or Se
c. Br-, Cl-, F-, or I-
You are trying to extract the compound 2-aminobenzoic acid from an aqueous solution into ether (in a form with a net zero charge). At which pH would the extraction be the most efficient? Ka1(COOH)=8.3x10^-3 and Ka2(NH3+)=1.10x10^-5
The compounds Br2 and ICl have the same number of electrons, yet Br2 melts at -7.2°C and ICl melts at 27.2°C. Explain
an electrochemical cell is constructed in which both electrodes are made of platinum but in which one electrode is in
For my one of the project i need this information , is any one know where i can find the process flow diagram of sodium hypochlorite, and a chart for world anual production( for each countries)
How many grams of sodium lactate ( or ) should be added to 1.00 of 0.140 lactic acid ( or ) to form a buffer solution with = 4.10? Assume that no volume change occurs when the sodium lactate is added.
Does (CH3CH2)2C=CHCH2CH3 have any cis/trans isomers and if so what are they? Constitutional isomers? Can you sketch
Draw the structure of 18-crown-6, a compound that is commonly used to bind certain metal ions
What is the concentration of Co2 ions at equilibrium? Assume the formation constant of Co(NH3)62 is 5.0× 1031.
A gas mixture with a total pressure of 765 contains each of the following gases at the indicated partial pressures: , 118 ; , 229 ; and , 187 . The mixture also contains helium gas. What is the partial pressure of helium gas.
Calculate the number of moles of an ideal gas if it has a pressure of 1.21 atm, a volume of 1.68 L, and a temperature of 217 oC. Use R = 0.0821 L-atm/mol-K for the value of the gas constant
Determine the amount of acetic acid and sodium acetate required. The Ka of acetic acid is 1.8 X 10^-5. Show the calculations for the preparation of 100 mL of an acetic acid - sodium acetate pH 5.0 buffer using .30 M acetic acid.
At what pH does the tripeptide, Ala-Val-Cys, have a net charge of -0.8? A. pH = 4.4 B. pH = 6.0 C. pH = 7.6 D. pH = 8.8 E. pH = 10.8
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