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Category: chemistry

Question A 2.50 mole sample of an ideal gas is expanded adia

chemistry

Question A 2.50 mole sample of an ideal gas is expanded adia

Posted By Bruce Simons

Question

A 2.50 mole sample of an ideal gas is expanded adiabatically against a constant pressure of 1.00 bar. The initial temperature and pressure of the gas are 325 K and 2.50 bar, respectively.

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Question What is the reagent combination that can introduce

chemistry

Question What is the reagent combination that can introduce

Posted By Bruce Simons

Question

What is the reagent combination that can introduce a t-butyl group into the aromatic compounds other than t-butanol + H2SO4 or t-butyl chorlide + AlCl3?

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Question Show transcribed image text Hexane (C6H14) burns wi

chemistry

Question Show transcribed image text Hexane (C6H14) burns wi

Posted By Bruce Simons

Question

Show transcribed image text Hexane (C6H14) burns with dry air to give products with dry molar analysis of: 10.7% CO2, 5.4% O2 and 83.9% N2. Determine the: balanced reaction equation percent

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Question Consider a sample of 2.00 moles of an ideal monatom

chemistry

Question Consider a sample of 2.00 moles of an ideal monatom

Posted By Bruce Simons

Question

Consider a sample of 2.00 moles of an ideal monatomic gas, initially at 27 degrees Celsius and 760 torr. The following reversible changes are made:
i. Adiabatic compression until the temperature is 400

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Question What are the possible formulas for the following hy

chemistry

Question What are the possible formulas for the following hy

Posted By Bruce Simons

Question

What are the possible formulas for the following hydrates? CaCl2, ZnSO4, MgSO4, CuSO4. What is the percent H2O in each of the known hydrates?

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Question The enthalpy of vaporization of water at 100 degree

chemistry

Question The enthalpy of vaporization of water at 100 degree

Posted By Bruce Simons

Question

The enthalpy of vaporization of water at 100 degrees Celsius is 40.656 kJ/mol. What are q, w and when one mole of water evaporates isobarically at 100 degrees Celsius? [Assume that pext.=

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Question The change in standard internal energy for the comb

chemistry

Question The change in standard internal energy for the comb

Posted By Bruce Simons

Question

The change in standard internal energy for the combustion of liquid ethanol is -1,373 kJ/mol at 298 K. What is the change in standard enthalpy for the same reaction? (physical chemistry question)

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Question Here is a problem I have been working on- I can’t s

chemistry

Question Here is a problem I have been working on- I can’t s

Posted By Bruce Simons

Question

Here is a problem I have been working on- I can’t seem to get the last part of it. Please Help!!

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Question Help please! Show transcribed image text Identify t

chemistry

Question Help please! Show transcribed image text Identify t

Posted By Bruce Simons

Question

Help please!

Show transcribed image text Identify the absolute configuration of the centers of chirality in each of the following compounds as R or S. If two centers of chirality are

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Question Consider the form of the First Law in differential

chemistry

Question Consider the form of the First Law in differential

Posted By Bruce Simons

Question

Consider the form of the First Law in differential form for an ideal gas, solved for the change in heat:

[n, Cv and R are constants]
Is q a state function?

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