Questions by BessieBrobst

0 votes

1 answer 20 views

Calculate the standard enthalpy change for the reaction: 2C2H5OH(l) + 9O2(g) -> 6CO2(g) + 8H2O(l) given that the standard enthalpy of formation for C2H5OH(l) is -278 kJ/mol, for CO2(g) is -394 kJ/mol and for H2O(l) is -286 kJ/mol.

asked 2 days ago in Chemical thermodynamics

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1 answer 7 views

A voltaic cell consists of a standard hydrogen electrode and a copper electrode in a solution of copper(II) sulfate. The measured cell potential is 0.78 V at 25°C. If the concentration of copper(II) sulfate is 0.1 M, what is the resistance of the electrochemical cell?

asked Jan 22 in ElectroChemistry

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1 answer 22 views

What lets different species of anole lizards live in the same area without competing?

asked Jan 7 in Science

0 votes

1 answer 31 views

What is composed of very long strands of glucose monomers, is largely indigestible and comprises the cell walls of plants?

asked Jan 6 in Science

0 votes

1 answer 21 views

What do we call the only light that people can see?

asked Jan 6 in Science

0 votes

1 answer 25 views

How many electrons are in the hydrogen atom?

asked Dec 30, 2024 in Science

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