1. Calculate the pH of a 0.17 M solution of HClO, with K_a = 3.5x10^{−8}.

2. At 25°C, 2.29E0 grams of sodium hydroxide is dissolved in enough water to make 500. mL of solution. Calculate ​[H_3O^+]. Do not enter units as part of your answer.

1. Explain the fragment patterns, isotope peaks, peak abundances, (The molecular formula for the compound is: C₂H₂Cl₂).

3:1 Ratio = Chlorine present

M⁺ peak

M⁺² peak

M⁺⁴ peak

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Please answer and show all work and units. Will rate ASAP.

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Consider the reaction shown below taking place at 25oC

N2(g) + 3 H2 (g) ⇆ 2 NH3 (g)

For this reaction it has been found that ∆Horx = - 92.38 kJ and ∆Sorx= - 98.4 J/K

A) Calculate the value of ΔGorx. Is this reaction spontaneous? Why or why not?

B) Calculate the value of the equilibrium constant, Kp, for this reaction. In which direction is the equilibrium displaced?

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Find out what you can about gel permeation chromatography (GPC). This technique is based on a different property of the compounds being separated than is thin-layer or traditional column chromatography. What property is this?

Show how the ratios of the simulated spherical S to the experimental S is equivalent to f/f0, and calculate this value. What does this suggest about the structure of the nuclesomal array in the saltfree buffer?

What are two different chemicals that we have added to the carbon cycle that did not previously exist naturally.

i.  Which functional group does each chemical belong to? Explain.

ii. How does the type of bonding and functional group these molecules posses affect their reactivity?

iii.   What are the health and environmental effects of the two chemicals?

Using the given data, calculate the change in Gibbs free energy for each of the following reactions. In each case indicate whether the reaction is spontaneous at 298 K under standard conditions.

Part A: 2Ag (s) + Cl2 (g) --> 2AgCl (s) Gibbs free energy for AgCl (s) is -109.70 kJ/mol

Part B: spontaneous or nonspontaneous

Part C: P4O10 (s) + 16H2 (g) --> 4PH3 (g) + 10H2O (g)

Gibbs free energy for P4O10 (s) is -2675.2 kJ/mol

Gibbs free energy for PH3 (g) is 13.4 kJ/mol

Gibbs free energy for H2O (g) is -228.57 kJ/mol

Part D: spontaneous or nonspontaneous

Part E: CH4 (g) + 4F2 (g) --> CF4 (g) + 4HF (g)

Gibbs free energy for CH4 (g) is -50.8 kJ/mol

Gibbs free energy for CF4 (g) is -635.1 kJ/mol

Gibbs free energy for HF (g) is -270.70 kJ/mol

Part F: spontaneous or nonspontaneous

Part G: 2H2O2 (l) --> 2H2O (l) + O2 (g)

Gibbs free energy for H2O2 (l) is -120.4 kJ/mol

Gibbs free energy for H2O (l) is -237.13 kJ/mol

Part H: spontaneous or nonspontaneous

4Au(s) + 16KCN(aq) + 3O2(g) + 6H2O(l) --> 4KAu(CN)4(aq) + 12KOH(aq) Balance using half reaction method. show all steps and please explain how you get the equation in each step

How many nitrate ions are present in 150.0 mL of 0.0875 M iron(III)nitrate?

How would you prepare 2.50 L of 0.0683 M CaCl2 from a 0.388 M solution of CaCl2?

A wastewater containing 150 mg/l chlorobenzene is treated in a laboratory adsorption unit using a PVC column, 1.0 inch internal diameter, to an effluent concentration of 15 mg/l . Service times, and throughput volumes at specified depths and flowrates associated with a breakthrough concentration of 15.0 mg/l are given in table 1.

table1 : result of adsorption column experiment

Loading rate,gpm/ft²   Bed depth,ft Throughput volume, gal Time, hr

1) is the attainable effluent concentration satisfactory from a regulatory standpoint?

2) determine the Bohart-Adams constant ( K,N₀ and x₀) for each hydraulic loading.

3)base on data derived above design an adsorption column 2.0 ft internal diameter to treat a wastewater flow 5,000 gal/d containing 150 mg/l of CB. The attainable effluent concentration is 15 mg/l and it is desired to operate the column for 90 days(8 hourslday,7 days/week) before reching exhaustion.

4)calculate the yearly carbon requirements in cubic feet.

what kind of information do you need? these are all what i got from paper

Define and differentiate between the terms reaction rate, rate expression, rate law, reaction order, and instantaneous rate law.

4Au(s) + 16KCN(aq) + 3O2(g) + 6H2O(l) --> 4KAu(CN)4(aq) + 12KOH(aq) Balance using half reaction method. show all steps

a) Write a balanced reaction for the formation of a polysiloxane starting form (CH₃)₂SiCl₂

b) Liquid silcones (polysiloxanes) are used of a variety of applications what are they and why are silicones used over hydrocarbon oils?