10/28/22

Interconvert Kp and Kc values. Close Problem Question Content Area Calculate Kp for the following reactions at the indicated temperature.
Interconvert Kp and Kc values.Calculate Kp for the following reactions at the indicated temperature.(a)   CO(g) + Cl2(g) COCl2(g)  Kc = 99.0 at 593 KKp = (b)   NH3(g) +... more
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10/28/22

Write equilibrium constant expressions.
Write equilibrium constant expressions for the following reactions in terms of concentration:(a)   PCl3(g) + Cl2(g) PCl5(g) K = (b)   W(s) + 2 H2O(g) WO2(s) + 2 H2(g) K = (c)   HN3(aq) +... more
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10/28/22

Manipulate equilibrium constant expressions.

The equilibrium constant for the following reaction is 2.54×108 at 523 °C. 2 H2(g) + S2(g)2 H2S(g)   K = 2.54×108 at 523 °C Calculate the equilibrium constant for the following reactions... more
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10/28/22

Calculate how many C2H4 molecules are contained in 45.8 mg of C2H4.
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10/28/22

A 8.30 L8.30 L container holds a mixture of two gases at 37 °C.37 °C. The partial pressures of gas A and gas B, respectively, are 0.294 atm0.294 atm and 0.843 atm.0.843 atm.

If 0.230 mol0.230 mol of a third gas is added with no change in volume or temperature, what will the total pressure become?
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10/28/22

Chemistry help quick

Chlorine can be prepared in the laboratory by the reaction of manganese dioxide with hydrochloric acid, HCl(aq)HCl(aq), as described by the... more
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10/28/22

Chemistry problem
A student has 5.70 g5.70 g of zinc powder, 1.05 L1.05 L of a 3.10 M3.10 M calcium nitrate solution, and 1.60 L1.60 L of a 2.10 M2.10 M lead(II) nitrate solution. Write the chemical reaction that... more
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10/28/22

Themo-Chemistry Related

A 20.0 g block of iron (molar heat capacity 25.1 J/mol･°C) at 50.0 °C is placed into 200.0 g of water initially at 25.0 °C. What is the change in temperature (in °C) of the iron block? (The molar... more
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10/27/22

Tomato juice contains 3.16 x 10-10 M [OH-]. What is the pH of tomato juice?
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10/27/22

Determine the molar enthalpy
Using the equations N₂ (g) + O₂ (g) → 2 NO (g) ∆H° = 180.6 kJ/mol N₂ (g) + 3 H₂ (g) → 2 NH₃ (g) ∆H° = -91.8 kJ/mol 2 H₂ (g) + O₂ (g) → 2 H₂O (g) ∆H° = -483.7 kJ/mol Determine the molar enthalpy (in... more
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10/27/22

Below are the values for ΔH and ΔS for two reactions.
Below are the values for ΔH and ΔS for two reactions.Reaction A: ΔH° = 10.5 kJ/mol ΔS° = 30 J/K*molReaction B: ΔH° = 1.85 kJ/mol ΔS° = -113 J/K*mola) From the values of ΔH and ΔS, calculate ΔGo... more
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10/27/22

Calculate the average translational kinetic energy, 𝐸k, for one mole of gas at 619 K. Translational kinetic energy is sometimes called average kinetic energy.
And Calculate the average translational kinetic energy for a single gas molecule at 619 K.
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10/27/22

Under identical conditions, separate samples of O2 and an unknown gas were allowed to effuse through identical membranes simultaneously.
After a certain amount of time, it was found that 7.75 mL of O2 had passed through the membrane, but only 3.63 mL of of the unknown gas had passed through.What is the molar mass of the unknown gas?
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10/27/22

Specific heat- Chemistry
In a constant‑pressure calorimeter, 60.0 mL60.0 mL of 0.300 M Ba(OH)20.300 M Ba(OH)2 was added to 60.0 mL60.0 mL of 0.600 M HCl.0.600 M HCl.The reaction caused the temperature of the solution to... more
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10/27/22

Which has the higher entropy? Briefly explain why for each situation.
a) 1.00 mol He (g) in a 5.00 L container or 1.00 mol He (g) in a 2.00 L containerb) 2B2O3(s) or 4B(s) + 3O2(g)
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10/27/22

Calculate the energy (in joules) of a photon emitted when an electron in a hydrogen atom undergoes a transition from 𝑛=6 to 𝑛=1.
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10/27/22

For the following combustion reaction CH₃CH₂CH₂COOH(l) + 5O₂(g) → 4CO₂(g) + 4H₂O(g) ∆H
For the following combustion reaction CH₃CH₂CH₂COOH(l) + 5O₂(g) → 4CO₂(g) + 4H₂O(g) ∆H = -2.18 × 10³ kJ When a 8.42-g sample of butyric acid (molar mass = 88.10 g/mol) is burned, how much energy... more
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10/26/22

Classify each of the reactions. Pb(NO3)2+NiCl2——PbCl2+Ni(NO3)2
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10/26/22

How to classify reaction
How to determine a decomposition, or a double replacement, single replacement and combination
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10/26/22

What is the solubility?
What is the solubility of La(IO₃)₃ in a solution that contains 0.400 M IO₃⁻ ions? (Ksp of La(IO₃)₃ is 7.5 × 10⁻¹²)
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10/26/22

chemistry question
When calcium carbonate is added to hydrochloric acid, calcium chloride, carbon dioxide, and water are produced. CaCO3(s)+2HCl(aq)⟶CaCl2(aq)+H2O(l)+CO2(g) . How many grams of calcium chloride... more
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10/26/22

Specific heat chem 2
A 0.522 g0.522 g sample of steam at 107.0 ∘C107.0 ∘C is condensed into a container with 4.63 g4.63 g of water at 17.0 ∘C.17.0 ∘C. What is the final temperature of the water mixture if no heat is... more
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10/25/22

Question is depicted below
Gaseous butane CH3CH22CH3 will react with gaseous oxygen O2 to produce gaseous carbon dioxide CO2 and gaseous water H2O. Suppose 3.5 g of butane is mixed with 19.8 g of oxygen. Calculate the... more
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10/25/22

How much Acetic Acid 5 %, in pint, is needed to prepare a 1000 mL of a 1 % Acetic Acid Solution?
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10/24/22

AP Chemistry Determine the value of the enthalpy change, ΔHrxn, for the following reaction using the information below: N2O(g) + NO2(g) → 3NO(g)
Determine the value of the enthalpy change, ΔHrxn, for the following reaction using the information below: N2O(g) + NO2(g) → 3NO(g)2NO(g) → N2(g) + O2(g) ΔHrxn = -181.0 kJ/mol2N2O(g) → 2N2(g) +... more
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