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This solution is to be prepared by allowing water at a set pH to reach equilibrium with solid Fe(OH)3. What pH should be used for the aqueous solution to give this desired concentration of [Fe3+]
Which of the following species is present in the greatest concentration in a 0.100 M H2SO4 solution in H2O
A person's blood alcohol (C2H5OH) level can be determined by titrating a sample of blood plasma with a potassium dichromate solution. The balanced equation is
If 26.96 mL of a standard 0.1650 M NaOH solution is required to neutralize 27.37 mL of H2SO4, what is the molarity of the acid solution
What is the balanced equation for the reaction of phenyl magneisum bromide with benzophenone to form triphenylmethanol
How to calculate the pH of 0.375 L of a 0.18 M acetic acid-0.29 M sodium acetate buffer before and after the addition of (a) 0.0060 mol of KOH and (b) 0.0060 mol of HBr.
What is the fraction of association for the following potassium propionate solutions. The Ka of propanoic acid is 1.34 × 10-5.
Determine the number of bonding electrons and the number of nonbonding electrons in the structure of XeF2
Can you please help me identify an acid from a base. What are the steps in identifying it by looking at a molecule. For example why is TiCl4 considered an acid
Both of the silicon-chlorine single bonds in are polar. In which direction should the polarity arrows point? away from central Si, towards Si, right or left
Concentrated ethanol solutions can be used to kill microorganisms. At low concentrations, however, such as in some wines, the microorganisms can survive and cause oxidation of the alcohol. What is t
The reversible chemical reaction A+B=C+D part b: What is the final concentration of D at equilibrium if the initial concentrations are[A] = 1.00 m and [B] = 2.00 ? Express the molar concentration nu
Reaction/exchange rates of CO2 and O2 in the alveoli must be included. Given that the inhalation and exhalation times are different, calculate the rate of important gases during the inhalation and e
Calculate the pH of 0.375 L of a 0.18 M acetic acid-0.29 M sodium acetate buffer before and after the addition of (a) .0060 mol of KOH and .0060 mol of HBr
Assuming 100% dissociation, calculate the freezing point and boiling point of 3.27 m AgNO3(aq). Constants may be found here.
When 2.11 g of a nonelectrolyte solute is dissolved in 365 mL of water at 25 °C, the resulting solution exerts an osmotic pressure of 845 torr
The boiling point of an aqueous solution is 101.53 °C. What is the freezing point? Constants can be found here.
A solution is made by dissolving 0.732 mol of nonelectrolyte solute in 837 g of benzene. Calculate the freezing point and boiling point of the solution.
Let x1 and x2 represent the mole fractions of 1-propanol and 2-propanol in a liquid mixture, respectively, and y1 and y2 represent the mole fractions of each in the vapor phase. For a solution of th
You need to dissolve CaCl2 in water to make a mixture that is 31.5% calcium chloride by mass. If the total mass of the mixture is 380.6 g, what masses of CaCl2 and water should be used
Heavy water has a formula D2O, and semi-deuterated water has the formula DHO, where D stands for deuterium. Using the data below, etimate the percentages of D2o and DHO present in natural water
Consider the following element combinations. Classify the bonds formed between each pair as ionic, polar covalent, or nonpolar covalent based solely on each element's position on the periodic table
A beaker with 1.50×102mL of an acetic acid buffer with a pH of 5.000 is sitting on a benchtop. The total molarity of acid and conjugate base in this buffer is 0.100 M. A student adds 7.20mL of
how many milliliters of 0.2 M KOH are required to titrate completely 650 ml of 0.05 M citric acid
What are the major components of the mixture after acid-base equilibriums have been established if a) half a mol, b) 2 mol of sulfuric acid (H2SO4) are added to a solution of one mol ketone