J.R. S.

04/29/24

Arrhenius Equation

The rate constant for the rate of decomposition of 𝑁2𝑂5 to NOand 𝑂2 in the gas phase is 1.66 𝑀−1𝑠−1 at 651 K and 7.39𝑀−1𝑠−1 at 701 K. Calculate the activation energy for thisdecomposition in kJ/mol.

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Chemistry

04/29/24

Under certain conditions the decomposition ofcarbon dioxide follows a zero order reaction. Given aninitial concentration of 0.333 M and k=0.000234 M/s,calculate the final concentration in M after... more

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Chemistry

04/29/24

Instantaneous Rate of Decomposition

Given the decomposition of 𝐻_2𝑂_2: 𝐻_2𝑂_2→ 2 𝐻_2𝑂 + 𝑂_2 the instantaneous rate of decomposition of hydrogen peroxide at t = 10.8 hr is determined to be 1.20 𝑥 10−2 M/hr, that is: -∆ {H_2O_2}/... more

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Chemistry

04/29/24

Clausius - Clapeyron Equation

At 34.0 °C, the vapor pressure of isooctane is 10.0 kPa, andat 98.8 °C, its vapor pressure is 100.0 kPa. Use thisinformation to calculate the enthalpy of vaporization forisooctane in kJ/mol.

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Chemistry

04/28/24

the spectator ions

________ + ________ → ________ + ________

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Chemistry

04/27/24

This question concerns the ideal gas law.

Determine the temperature of 0.105 moles of gas in a volume of 1750 mL at 15.0 bar. State your answer in degrees Fahrenheit.

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Chemistry

04/27/24

This problem has to do with the ideal gas law.

What volume is required to contain 100.0 moles O2 at STP?

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Chemistry

04/27/24

My question is a General Chemistry that involves the heat capacity, heat of fusion, and heat of vaporization.

Calculate each of the following: a. the amount of heat required to warm 3.47 moles of water from 25*C to 55*C.b. the mass of steam required to release 3.65 x 10 to the 5th power kJ on... more

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Chemistry

04/27/24

My question is a General Chemistry that involves the heat capacity, heat of fusion, and heat of vaporization.

Calculate each of the following: a. the amount of heat required to warm 3.47 moles of water from 25*C to 55* C.b. the mass of steam required to release 3.65 x 10 to the 5th power kJ on... more

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Chemistry

04/27/24

Need help balancing with half-reaction ??

Write the half-reactions as they occur at each electrode and the net cell reaction for this electrochemical cell containing indium and cadmium.In(s) | In^3+(aq) || Cd^2+(aq) | Cd(s)Anode:Cathode:

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Chemistry

04/27/24

My questions is a general chemistry question that involves percent yields, theoretical yields, and the amounts of grams or moles of a substance required to process another substance.

To monitor levels of ozone, O3, in the air, an air sample is processed by an instrument that causes ozone to react with sodium iodide in the following reaction: O3 (g) + 2NaI (aq) + H2O (l) yields... more

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Chemistry

04/27/24

Need help with balancing half-reactions ??

Consider a galvanic cell in which Al^3+ is reduced to elemental aluminum and magnesium metal is oxidized to Mg^2+. Write the balanced half-cell reactions that take place at the cathode and at the... more

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Chemistry

04/27/24

Need help balancing half-reactions

Separate this redox reaction into its balanced component half-reactions. Use the symbol e^- for an electron.Cl2 + 2Na → 2 NaClOxidation Half-Reaction:Reduction Half-Reaction:

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Chemistry

04/26/24

Heating and Cooling Curve Problems

Calculate the energy (in kJ) required to raise the temperature of 1.00 g H2O from -25.00C to-11.00C.Calculate the energy (in kJ) required to raise the temperature of 1.00 g H2O from -15.00C to... more

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Math Calculus Chemistry

04/26/24

Based on the information below, what equivalent oral daily dose, in milligrams of theophylline, should the patient receive upon discharge?

The drug aminophylline is 80% theophylline. A patient to be discharged from the hospital has been receiving aminophylline 40 mg/hour by IV infusion. Upon discharge, the physician orders oral... more

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Chemistry

04/26/24

Balance the equation below by adding stoichiometric coefficients

Au + HNO3 + HCl --> HAuCl4 + NO2 + H2O What is the function of HCl?

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Chemistry

04/26/24

Balance the equation in basic conditions. Phases are optional.

CoCl2 + Na2O2 --> Co(OH)3 + Cl- + Na+

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Chemistry

04/26/24

Balance the equation in acidic conditions. Phases are optional

Cr2+ + H2MoO4 --> Cr3+ + Mo

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Chemistry

04/26/24