J.R. S.

04/08/21

what is a sketon equation

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Chemistry Organic Chemistry Inorganic Chemistry

04/08/21

How do I know if a solution is acidic, basic, or neutral?

I get by looking at pH's you can tell, but given just the compound say LiNO2, LiNO3, KCN, NaClO, how do I know that KCN has the highest PH and is most basic? Is this based on the periodic table? It... more

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Chemistry Organic Chemistry

04/08/21

Identify the products formed in this Brønsted-Lowry reaction. HCO−3+NO−2↽−−⇀acid+base

I get confused with these type of problems. What would the base and acid be?

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Chemistry Ap Chemistry

04/08/21

2NO(g) ⇌ N2(g) + O2(g) + heat Stress: Increase pressure a) What is the resulting effect on the number of moles of O2 b) What is the resulting effect on the number of moles of NO

2NO(g) ⇌ N2(g) + O2(g) + heatStress: Increase pressure a) What is the resulting effect on the number of moles of O2b) What is the resulting effect on the number of moles of NO

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Chemistry Ap Chemistry

04/08/21

Consider the reaction CH4(g) + 2 O2(g)⇌CO2(g) + 2 H2O(g). a. Write the expression for the equilibrium constant for this reaction. b. Determine the value of K.

Consider the reaction CH4(g) + 2 O2(g)⇌CO2(g) + 2 H2O(g).a. Write the expression for the equilibrium constant for this reaction.b. Determine the value of K.

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Chemistry Ap Chemistry

04/08/21

Write the equilibrium expression for the following reactions:

Write the equilibrium expression for the following reactions:a. H2 (g)+ I2 (g) ⇌ 2HI(g)b. N2(g) + 3 H2(g)⇌2 NH3(g)c. Ag2CO3(s)⇌2 Ag+(aq) + CO32–(aq)

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Chemistry Ap Chemistry

04/08/21

A solution equilibrium exists with the equation AgCl(s)⇌Ag+1(aq) + Cl-1(aq) and NaCl is added to the system. What happens when the NaCl is added?

A solution equilibrium exists with the equation AgCl(s)⇌Ag+1(aq) + Cl-1(aq) and NaCl is added to the system. What happens when the NaCl is added?a) Equilibrium will shift to the right and more AgBr... more

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Chemistry

04/08/21

What is the value of 𝐾 for this aqueous reaction at 298 K? A+B↽−−⇀C+DΔ𝐺°=28.87 kJ/mol A + B ↽ − − ⇀ C + D Δ G ° = 28.87 kJ / mol

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Chemistry

04/08/21

Calculate the standard change in Gibbs free energy for the reaction at 25 °C. Refer to the ΔG°f values. 3H2(g)+Fe2O3(s)⟶2Fe(s)+3H2O(g)

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Chemistry

04/08/21

For a particular reaction at 132.0 °C, Δ𝐺=−64.76 kJ , and Δ𝑆=676.54 J/K . Calculate Δ𝐺 for this reaction at −77.1 °C.

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Chemistry

04/08/21

At 25 ∘C , the equilibrium partial pressures for the reaction

3A(g)+4B(g)↽−−⇀2C(g)+3D(g) were found to be 𝑃A=5.56 atm, 𝑃B=5.63 atm, 𝑃C=4.27 atm, and 𝑃D=5.18 atm. What is the standard change in Gibbs free energy of this reaction at 25 ∘C ?

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Chemistry Redox Reactions

04/08/21

Balancing Redox Equations

Cu + HNO3 -> Cu(NO3)2 + No + H2OI can usually follow along when my professor does these, but I have trouble starting on my own. I know I'm supposed to balance the equation and the charges, but... more

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Chemistry Biochemistry Organic Chemistry

04/07/21

Precipitation: Q vs K, Calculate

When 12.0 mL of a 1.73×10-4 M sodium hydroxide solution is combined with 15.0 mL of a 3.79×10-4 M cobalt(II) bromide solution does a precipitate form? (yes or no)For these conditions the Reaction... more

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Chemistry

04/07/21

please hep with chemistry

Describe how the number of electrons in N changes and describe how the charge of N changes when nitrogen becomes a ion.

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Chemistry

04/07/21

A pictorial representation of an electronic configuration is shown. An electron configuration has an up and a down arrow in 1 s, an up and a down arrrow in 2 s,

A pictorial representation of an electronic configuration is shown.Give the full electron configuration AND NAME . Do not use the noble gas abbreviation.

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Chemistry

04/07/21

If a 0.152 g sample of a weak acid requires 25.30 ml of 0.1036 M NaOH to reach an equivalence point, what is the molar mass of the acid? (g/mol)

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Chemistry

04/07/21

Be sure to include the proper sign (+ or –) in your answer.

One proposed source of clean energy is the combustion of hydrogen in the presence of oxygen. This reaction releases a significant amount of energy, and the only product of the reaction is water.... more

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Chemistry

04/07/21

Complete the Lewis structures by adding the missing non-bonding electrons and the missing non-zero formal charges. Complete the Lewis structure with the atoms arranged as HOCl.

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Math Science Chemistry

04/07/21

Help With A Chemistry Problem Please

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Chemistry Chemical Equilibrium

04/07/21

Consider the gas-phase reaction H2(g) + I2(g) ⇄ 2 HI(g)

Suppose that a sealed flask containing H2 and I2 has been heated to 425 °C and the initial concentrations of H2 and I2 were each 0.0175 mol/L. With time, the concentrations of H2 and I2 decline,... more

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Chemistry

04/07/21

Find the ΔH for the reaction below N2H4(l)+H2(g)→2NH3(g)N2H4(l) +CH4O(l)→CH2O(g) +N2(g) +3H2 (g) ΔH = -37 kJN2(g) + 3H2(g) → 2NH 3(g) ΔH = -46 kJCH4O(l) → CH2O(g) + H 2(g) ΔH = -65 kJ

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Chemistry

04/06/21

Write the acidic equilibrium equation for HPO₄²⁻

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Chemistry

04/06/21

Assuming equal concentrations, arrange these solutions by pH.

NaOH(aq), CH3NH3Br(aq), HI(aq), NAClO4(aq), and Mg(ClO)2(aq)From highest to lowest

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Chemistry

04/06/21

The 𝐾a of propanoic acid (C2H5COOH) is 1.34×10−5.

Calculate the pH of the solution and the concentrations of C2H5COOH and C2H5COO- in a 0.489M propanoic acid solution at equilibrium.

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Chemistry

04/06/21

What is the pH of the solution at this point in the titration?

Two drops of a phenolphthalein indicator solution are added to a 30.0 mL solution of 0.12 M hydrofluoric acid. The solution is titrated with 0.097 M sodium hydroxide until a faint pink color is... more

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what is a sketon equation

How do I know if a solution is acidic, basic, or neutral?

Identify the products formed in this Brønsted-Lowry reaction. HCO−3+NO−2↽−−⇀acid+base

2NO(g) ⇌ N2(g) + O2(g) + heat Stress: Increase pressure a) What is the resulting effect on the number of moles of O2 b) What is the resulting effect on the number of moles of NO

Consider the reaction CH4(g) + 2 O2(g)⇌CO2(g) + 2 H2O(g). a. Write the expression for the equilibrium constant for this reaction. b. Determine the value of K.

Write the equilibrium expression for the following reactions:

A solution equilibrium exists with the equation AgCl(s)⇌Ag+1(aq) + Cl-1(aq) and NaCl is added to the system. What happens when the NaCl is added?

What is the value of 𝐾 for this aqueous reaction at 298 K? A+B↽−−⇀C+DΔ𝐺°=28.87 kJ/mol A + B ↽ − − ⇀ C + D Δ G ° = 28.87 kJ / mol

Calculate the standard change in Gibbs free energy for the reaction at 25 °C. Refer to the ΔG°f values. 3H2(g)+Fe2O3(s)⟶2Fe(s)+3H2O(g)

For a particular reaction at 132.0 °C, Δ𝐺=−64.76 kJ , and Δ𝑆=676.54 J/K . Calculate Δ𝐺 for this reaction at −77.1 °C.

At 25 ∘C , the equilibrium partial pressures for the reaction

Balancing Redox Equations

Precipitation: Q vs K, Calculate

please hep with chemistry

A pictorial representation of an electronic configuration is shown. An electron configuration has an up and a down arrow in 1 s, an up and a down arrrow in 2 s,

If a 0.152 g sample of a weak acid requires 25.30 ml of 0.1036 M NaOH to reach an equivalence point, what is the molar mass of the acid? (g/mol)

Be sure to include the proper sign (+ or –) in your answer.

Complete the Lewis structures by adding the missing non-bonding electrons and the missing non-zero formal charges. Complete the Lewis structure with the atoms arranged as HOCl.

Help With A Chemistry Problem Please

Consider the gas-phase reaction H2(g) + I2(g) ⇄ 2 HI(g)

Find the ΔH for the reaction below N2H4(l)+H2(g)→2NH3(g)N2H4(l) +CH4O(l)→CH2O(g) +N2(g) +3H2 (g) ΔH = -37 kJN2(g) + 3H2(g) → 2NH 3(g) ΔH = -46 kJCH4O(l) → CH2O(g) + H 2(g) ΔH = -65 kJ

Write the acidic equilibrium equation for HPO₄²⁻

Assuming equal concentrations, arrange these solutions by pH.

The 𝐾a of propanoic acid (C2H5COOH) is 1.34×10−5.

What is the pH of the solution at this point in the titration?

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