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Chemistry

04/26/24

General Chemistry 2 Equilibrium Equation

Determine if the following salt is neutral, acidic or basic. If acidic or basic, write the appropriate equilibrium equation for the acid or base that exists when the salt is dissolved in aqueous... more

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Chemistry

04/26/24

General Chemistry 2 Equilibrium Equation

Determine if the following salt is neutral, acidic or basic. If acidic or basic, write the appropriate equilibrium equation for the acid or base that exists when the salt is dissolved in aqueous... more

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Answers •1

Chemistry

04/26/24

General Chemistry 2 Equilibrium Equation

Determine if the following salt is neutral, acidic or basic. If acidic or basic, write the appropriate equilibrium equation for the acid or base that exists when the salt is dissolved in aqueous... more

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Answers •1

Chemistry

04/26/24

A reaction has an enthalpy change of -54kj and an activation energy of 89kj. What is the enthalpy change of the reverse reaction?

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Chemistry

04/26/24

Calculate the solublity for Ca_3(PO_4 )_2 given a Ksp = 0.0000120

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Chemistry

04/26/24

Calculate the solublity for PbCrO_4 given a Ksp = 0.0000109 in a 0.176 M Na_2CrO_4 solution

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Chemistry

04/26/24

Calculate the molar solublity for PbF_2 given a Ksp= 0.000000347 in a 0.397 M Pb(NO3)_2 solution

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Chemistry

04/26/24

Calculate the solublity for Al (OH)_3 given a Ksp= 0.0000000000106 in a buffered solution with pH= 12.3

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Chemistry

04/26/24

Calculate the threshhold in which Co (OH)_3 given a Ksp= 0.0000000000000199 would increase in solubility. Is the pH greater than, less than, or equal to?

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Chemistry

04/24/24

Calculate the pH when 30.0 mL of 0.200 M HBr is mixed with 30.0 mL of 0.400 M CH₃NH₂ (Kb = 4.4 × 10⁻⁴).

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Chemistry

04/24/24

What is the final [H⁺] if 1.00 L of 0.0550 M HCl is mixed with 1.00 L of 12.0 M acetic acid (Ka for CH₃COOH is 1.80 × 10⁻⁵)?

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Chemistry

04/24/24

Draw a simple P-T phase for a one- component system

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Chemistry

04/24/24

what is the equation for the partial derivative (aG/aP)T ?

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Chemistry

04/24/24

what is the Gibbs free energy change when 62 g of methane undergoes a pressure change from 0.5 bar to 5.2 bar at 298 k?

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Chemistry

04/24/24

A 25.0 mL solution of HBr is neutralized with 17.7 mL of 0.105 M Sr(OH)₂. What is the concentration of the original HBr solution?

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Chemistry

04/24/24

Calculate the pH when 50.0 mL of 0.150 M KOH is mixed with 20.0 mL of 0.300 M HBrO (Ka = 2.5 × 10⁻⁹)

I cant figure out this one

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Chemistry

04/24/24

Calculate [FeNCS2+]equil, [Fe3+] initial, [SCN-]initial, [Fe3+]equil, [SCN-]equil, and Kc

Standard solution A (~2.0*10^-5) 12.50 mL of 0.200 M Fe(NO3)3 2.50 mL of 2.00e-4 M KSCN 10.00 mL of 0.500 M HNO3 Absorbance was 0.02 Equilibrium solution 1 10.00 mL of 2.00e-3 M... more

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Chemistry

04/24/24

Calculate the percent by mass of benzene in a solution containing 10.4 g of benzene in 27.4 g of carbon tetrachloride.

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Chemistry

04/24/24

Calculate the freezing point and boiling point of a solution that contains 65.6 g NaCl and 42.4 g KBr dissolved in 750.3 mL H2O.

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Chemistry

04/24/24

A rock salt (NaCl), ice, and water mixture is used to cool milk and cream to make homemade ice cream. How many grams of rock salt must be added to water to lower the freezing point 12.6°C?

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Chemistry

04/24/24

What is the molarity of each resulting solution when the following mixtures are prepared?

(a) 587.7 mL H2O is added to 20.0 mL 6.25 M HNO3 (b) 31.7 mL 1.75 M HCl is added to 80.0 mL 0.336 M HCl

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Chemistry

04/24/24

What is the value of K for this aqueous reaction at 298 K

A + B ⇌ C + D Delta G Deegree = 23.53 kJ/mol

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Chemistry

04/24/24

Given the information calculate ΔG° at 298 K for the reaction A + B --> 2C

A + B --> 2D. Delta H deegree= -666.3 kJ Delta S deegree= 301.0 J/K C--> D Delta H deegree= 509.0 kJ Delta S deegree= -163.0 J/K

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Chemistry

04/23/24

What is the molarity of the following solutions?

(a) 0.78 g MgCl2 in 700 mL of solution (b) 9.47 g Na2S in 300 mL solution (c) 1.73 g CaF2 in 315 mL of solution

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Chemistry

04/23/24

What is the molarity of the following solutions?

(a)4.3 mol KCl in 1.0 L of solution (b) 1.92 mol H2SO4 in 348 mL of solution (c) 0.891 mol of ammonia in 225 mL of solution

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General Chemistry 2 Equilibrium Equation

General Chemistry 2 Equilibrium Equation

General Chemistry 2 Equilibrium Equation

A reaction has an enthalpy change of -54kj and an activation energy of 89kj. What is the enthalpy change of the reverse reaction?

Calculate the solublity for Ca_3(PO_4 )_2 given a Ksp = 0.0000120

Calculate the solublity for PbCrO_4 given a Ksp = 0.0000109 in a 0.176 M Na_2CrO_4 solution

Calculate the molar solublity for PbF_2 given a Ksp= 0.000000347 in a 0.397 M Pb(NO3)_2 solution

Calculate the solublity for Al (OH)_3 given a Ksp= 0.0000000000106 in a buffered solution with pH= 12.3

Calculate the threshhold in which Co (OH)_3 given a Ksp= 0.0000000000000199 would increase in solubility. Is the pH greater than, less than, or equal to?

Calculate the pH when 30.0 mL of 0.200 M HBr is mixed with 30.0 mL of 0.400 M CH₃NH₂ (Kb = 4.4 × 10⁻⁴).

What is the final [H⁺] if 1.00 L of 0.0550 M HCl is mixed with 1.00 L of 12.0 M acetic acid (Ka for CH₃COOH is 1.80 × 10⁻⁵)?

Draw a simple P-T phase for a one- component system

what is the equation for the partial derivative (aG/aP)T ?

what is the Gibbs free energy change when 62 g of methane undergoes a pressure change from 0.5 bar to 5.2 bar at 298 k?

A 25.0 mL solution of HBr is neutralized with 17.7 mL of 0.105 M Sr(OH)₂. What is the concentration of the original HBr solution?

Calculate the pH when 50.0 mL of 0.150 M KOH is mixed with 20.0 mL of 0.300 M HBrO (Ka = 2.5 × 10⁻⁹)

Calculate [FeNCS2+]equil, [Fe3+] initial, [SCN-]initial, [Fe3+]equil, [SCN-]equil, and Kc

Calculate the percent by mass of benzene in a solution containing 10.4 g of benzene in 27.4 g of carbon tetrachloride.

Calculate the freezing point and boiling point of a solution that contains 65.6 g NaCl and 42.4 g KBr dissolved in 750.3 mL H2O.

A rock salt (NaCl), ice, and water mixture is used to cool milk and cream to make homemade ice cream. How many grams of rock salt must be added to water to lower the freezing point 12.6°C?

What is the molarity of each resulting solution when the following mixtures are prepared?

What is the value of K for this aqueous reaction at 298 K

Given the information calculate ΔG° at 298 K for the reaction A + B --> 2C

What is the molarity of the following solutions?

What is the molarity of the following solutions?

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