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Predict the acid/base/neutral properties of 1.00 M solutions of, respectively, KH2AsO4 and K2HAsO4.
Would 0.334 M solutions of the following three compounds, respectively, be acidic, basic, or neutral?
What is the pH of a 2.025 M solution of the weak acid H3A? [Note: H3A has K1=3.429x10-6, K2=2.914x10-10, and K3=6.738x10-12
What is the limiting reactant. How much of the nonlimiting reactant remains after the reaction is completed. Assume that all of the limiting reactant is consumed.
Ethan contain 2.659 carbon and .668 gm of H, and one sample of acetylene contains 4.59 g of carbon and .382 gm of h. write emperical formula for ethane , acetylene
It required 50.00 mL of 0.1565 M KMnO4 to titrate 2.878 g of the solution containing hydrogen peroxide. What was the mass percentage of H2O2 in the solution
What happens to carboxylic acid when it reacts with 1M NaOH and show the reaction. How does this change its solubility. Which compounds are now in each solution
What is the molarity of H2C4H4O6 if 31.75 mL of 0.1749 M KOH are required to react with 10.04 mL of H2C4H4O6 solution according to the reaction below
Assuming that seawater has a total ion concentration (a.k.a colligative molarity) of 1.10 Mc, calculate how many liters of seawater are needed to produce 15.4 L of fresh water at 20 °C with an a
A 119.6ml sample of 0.110M methylamine (CH3NH2) is titrated with 0.255 M HNO3 . Calculate the pH after the addition of each of the following volumes of acid.
Calculate oxalate ion in the resulting solution. volume change is negligible Calculate the Kb for the reaction that occurs when solid sodium oxalate is dissolved in water
2-Methyl-1-propanol is more soluble in water than is glycerol because 2-methyl-1-propanol forms fewer hydrogen bonds with water. Glycerol is more soluble in water than is 2-methyl-1-propanol because g
Find emperical formula 0.25 mal of Iron atoms combined with 0.33 mal of O atoms. Find emperical formula
dinitrogen pentaoxide has 8.24 x10^20 molcules, how many gram of dinitrogen pentaoxide prsent
Main group elements often attain a filled outer level (either eight electrons or two) by forming ions with the electron configuration of the nearest noble gas
The mineral galena is composed of lead (II) sulfide and has anaverage density of 7.46 g/cm3.(a) how many moles oflead(II) sulfide are in 3.58ft3 of galena b. How many Lead (ii) atoms are in 1.99dm3
Copper (II) Iodate precipitates from iodate solution. The formula of the precipitate is Cu(IO3)2. A saturated solution of this substance was made in 0.01 M KlO3. The copper concentration was found t
Write the chemical equation describing solubility equilibrium and the solubility product constant expression for Cu(IO3)2(s) and Ba3(PO4)2(s)
The mitochondrion has two membranes, the inner and outer- the outer membrane is porous and enables many molecules to freely diffuse. The inner membrane is different from the outer membrane as it is
the R isomer of limonene has an optical rotation, alpha,of +123 degrees the S isomer has an optical rotation, alpha, of -123 degrees. IF the observed rotation of a mixture of the R and S isomer resu
Colligative properties are independent of the type of electrolytes in solution. suppose that in a solution system, a semipermeable memebrane is used to separate a sucrose-water solution from its pur
The mole fraction of nitrogen in a air is 0.78. If the total barometric pressure is 760 torr, what is the partial pressure of nitrogen
A sample of a fluorocarbon gas was allowed to expand to twice its volume. In this reversible, adiabatic expansion, the temperature dropped from 298.15K to 248.44K. assuming the gas acts ideally duri
Can someone name a complexing agent that only binds to Mg(II) and is fluorescent as well. Or can you disprove that Chromonycin A3 is not selective to Mg(II)