07/11/22

What is the pKb of its conjugate base?
You have an acid with pKa=5.232. What is the pKb of its conjugate base? (pKa and pKb are unitless quantities)
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07/11/22

Help me solve this!!!!
You are looking at the formation of the dicyanoargentum complex ion, [Ag(CN)2]-1(aq). You combined 100.0mL of 0.1358M Ag+1(aq) with 150.0mL of 0.1816M CN-1(aq) and you allowed the reaction reach... more
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07/10/22

help solving this

Found the following:Pb+2(aq) + 4 I-(aq) <=> [PbI4]-2(aq)K = (3.062x10^4)What is the value of K for the following reaction?3 Pb+2(aq) + 12 I-(aq) <=> 3 [PbI4]-2(aq)
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07/10/22

What is the value of K for the following reaction?
The following found below:HNO2(aq) + H2O(l) <=> H3O+(aq) + NO2-(aq)K = (4.552 x 10^-4)What is the value of K for the following reaction?H3O+(aq) + NO2-(aq) <=> HNO2(aq) + H2O(l)
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07/09/22

What is concentration of iron ions and barium ions?
1.) What is concentration of barium ions in a saturated solution of barium sulfate?Ksp(BaSO4) = (2.291x10^-8)2.) What is the concentration of iron(II) ions in a saturated solution of iron(II)... more
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07/09/22

Chemistry 102: Acids: pH difference
A weather system moving through the American Midwest produced rain with an average pH of 5.08. By the time the system reached New England, the rain it produced had an average pH of 4.69.How much... more
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07/09/22

Write the rate law for the two elementary reaction equations. 2A(g)+B(g)⟶C(g)+D(g) rate=𝑘 X(g)+Y(g)⟶Z(g) rate=𝑘


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07/09/22

An aqueous solution of sodium iodide, , contains 5.80 grams of sodium iodide and 17.3 grams of water. What is the weight/weight percent of sodium iodide in the solution? Weight/weight percent = %
An aqueous solution of sodium iodide, , contains 5.80 grams of sodium iodide and 17.3 grams of water. What is the weight/weight percent of sodium iodide in the solution?Weight/weight percent = %
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07/09/22

Chemistry 102: Acids: Rank acidity Highest to Lowest
Rank the following solutions in order of increasing acidity, placing the most acidic solution at the left. (CH3COOH is approximately 1.0% ionized at this concentration.)pH=7.45pH=0.00[HCL]=0.15... more
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07/09/22

Chemistry 102: Equilibrium: Find value of Kp
Phosgene (COCl2) is used in the manufacture of foam rubber and bulletproof glass. It is formed from carbon monoxide and chlorine in the following reaction:Cl2​(g)+CO(g)COCl2​(g)The value of Kc for... more
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07/09/22

What is the pKa of the new acid?
When you prepare a 1.139M solution of the monoprotic acid, the measured pH of the solution is 4.619. What is the pKa of the new acid?
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07/09/22

How do you find pOh and expected pH?
1.) An aqueous solution at 25°C with [OH-] = (5.916x10^-5) M. What is the pOH of this solution?2.) What is expected pH of a 0.222 M solution of Ca(OH)2(aq)?
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07/09/22

How do you find the equilibrium constant?
CH3COOCH3(g) + H2O(g) <--> CH3COOH(g) + CH3OH(g)You prepared a mixture with [CH3COOCH3]initial = 0.2318M and [H2O]initial =0.1952M.After reaction reaches equilibrium,... more
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07/09/22

A quantity of 1.00 mol of sodium chloride will produce the same number of solute particles as 1.00 mol of potassium chloride.
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07/09/22

A Container is filled with 1.00 mole each of the following gases: H2, N2, O2, Ne. The total pressure of the gases in the container is 800 mmHg. The partial pressure of the N2 gas is:
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07/09/22

A noble gas is found to have a density of 3.74 g/L at STP. The possible identity of this gas is:

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07/08/22

Can I get help on this
The chemical reaction shown was performed and the concentration of HClHCl was measured... more
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07/08/22

How do find H3O+ and OH??
1.) The pOH of an aqueous solution at 25°C is (4.032x10^0). What is [OH-]?2.) An aqueous solution at 25°C pH is (5.897x10^0). What is [H3O+]
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07/08/22

How do you find pH and OH of a solution?
You have an aqueous solution with [H3O+] = (9.228x10^-5) M at 25°C. What is [OH-] and pH of this solution.
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07/08/22

What is the pKa for this acid?
Acid is found to have Ka = 1.72 x 10-11. What is the pKa for this acid?
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07/08/22

Help me solve this problem
You titrated 40.00mL of an unknown H2SO4(aq) solution to the second equivalence point with 33.17mL of 0.389M NaOH(aq). What is the concentration of the H2SO4(aq) solution?
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07/08/22

What is the value of Kc for this reaction?
A(aq) + 2 B(aq) ↔ C(aq) + D(aq)The reaction reaches equilibrium, and [A]eq=0.282M, [B]eq=0.318M, [C]eq=0.732M, and [D]eq=0.836M . What is the value of Kc for this reaction? (Report your answer to... more
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07/07/22

What is ∆G° for the reaction 3 O₂(g) → 2 O₃(g) at 25°C (or 298 K) if K = 6.1 x 10⁻⁵⁸? (R = 8.314. J/mol ･ K)
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07/07/22

Partial Pressure

An empty steel vessel is charged with 0.200 atm of C and 0.200 atm of A. Once the system reaches equilibrium according to the reaction below, what is the equilibrium partial pressure of C? Kp for... more
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07/07/22

Molar Concentration at Equilibrium
At high temperatures, iodine molecules can dissociate into iodine atoms. For the reaction I₂(g) ⇌ 2 I･(g) Kc = 1.27 × 10⁻⁴ at 900 °C. A 65.5 g sample of I₂ is placed in a 1.00 L vessel and... more
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