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Solid cobalt(II) hydroxide dissociates in water according to the following expression. Co(OH)2(s) Co2+(aq) + 2 OH-(aq) If 1.00 L of saturated Co(OH)2 solution is neutralized by 15.20 mL of 0.00150 M
What would happen to the calcium ion concentration in a saturated solution of Ca(OH)2 if the hydroxide ion concentration is increased by dissolving solid NaOH. What is the name of this effect
The linear molecule FeH2 has been observed in the gas phase. Assume that the iron atom can potentially use s, p, and d orbitals to interact with the hydrogens
Oxygen is more electronegative than nitrogen; fluorine is more electronegative than the other halogens. Fluoride is a stronger field ligand than the other halogens, but ammonia is a stronger field l
Nitrogen monofluoride, NF, can serve as a ligand in transition-metal complexes. a. Prepare a molecule orbital energy-level diagram of the NF molecule, showing clearly how the atomic orbitals interac
Oxygen is more electronegative than nitrogen, fluorine is more electronegative than the other halogens. Fluoride is a stronger field ligand than the other halogens, but ammonia is a stronger field l
If 8.0 moles of the gas A is palced in a 60.0 L tank with 1.0 moles of B at 0 degress celsius and 1 atm, they react according to this equation: 2A(g) + B(g) --> 3C(g) +D(g) How many moles are pre
Diazomethane has the following composition by mass: 28.57% C, 4.80% H, and 66.64% N. The molar mass of diazomethane is 42.04 g/mol. Find the molecular formula of diazomethane and draw its Lewis stru
Solid CrF3 contains a Cr(III) ion surrounded by six F- ions in an octahedral geometry, all at distances of 190 pm. However, MnF3 is in a distorted geometry with Mn-F distances of 179, 191, and 209 p
Write the electron configurations for the following ions. You should use the noble gas abbreviations: Te2-, Mg+, As+, I-, Fe3+, N3-, Sn4+, Tl4+
Iron exhibits three common oxidation states, as seen in Fe, Fe2+, and Fe3+. Write electron configuarations for each of these species using the noble gas abbreviations and determine the n and l quant
(a) Find the intervals of increase or decrease. (b) Find the local maximum and minimum values. (c) Find the intervals of concavity and the in?ection points. (d) Use the information from parts (a)-(c
r2 deaker and c3 phosphate are titrating 100 ml of monoprotic acid (HAc) with a .5M NaOH solution. the equivalence point was reached after the addition of 15 ml. what is the concentration of the aci
Analysis of water in a sediment sample at equilibrium at pH 7.00 showed [SO42-] = 2.00 x 10^-5 M and a partial pressure of H2S of 0.100 atm. Show with appropriate calculations if methane, CH4, would
Draw the structure(s) of all carbocations that could potentially form from the alkene and label each carbocation as primary, secondary or tertiary. 1-butene
In some industrial processes, sulfite is added to remove dissolved O2 to prevent corrosion of pipes. Write the balanced overall chemical reaction for reduction of dissolved O2 by sulfite (SO32-).
Draw the structure(s) of all carbocations that could potentially form from the alkene and label each carbocation as primary, secondary or tertiary. 2-methylpropene
What is the buffer strength (ie the total of Ha and A). The concentration of weak base in the buffer on 0.126 M The concentration of weak acid in the buffer is 0.04906
What is the pressure of dry H2 in mmHg. In atm. d. Assuiming ideal gas behavior, how many moles of H2 has were collected.
A current of 0.600 A is passed through a cell for 5min and 30 s. How much charge (in C) was trasferred? How many electrons were transfered
Why does surface complex formation with a weak acid lead to a relative maximum in the extent of surface complex formation (adsorption) at a pH which is usually near the value of -log acidity constan
Consider the following system in equillibrium CaCO3(s) = CaO(s) + CO2(g) How many phases are present. Explain.
Which ground-state atom has an electron configuration described by the following orbital diagram? A antimony B germanium C indium D lead E tin
What is the partial pressure of oxygen gas in an oxygen and neon gas mixture at 1.280 atm. The gas mixture contains 15.00 g of oxygen and 15.00 g of neon
A 54.9 g sample of the compound X2O7 contains 33.6 g of oxygen atoms. What is the molar mass of element X