Recent activity by MaryjoMcReyn

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Determine the standard enthalpy change of the reaction between 50.0 mL of 0.200 M hydrochloric acid (HCl) and 50.0 mL of 0.100 M sodium hydroxide (NaOH) at 25°C. The reaction is a neutralization reaction between HCl and NaOH, and the products are water and sodium chloride (NaCl). The molar enthalpy of formation of NaCl is -411.2 kJ/mol, and the specific heat capacity of the aqueous solution is 4.18 J/g°C.

asked 1 day ago in Chemical thermodynamics

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Calculate the standard Gibbs free energy change for the electrochemical reaction of zinc and copper ions: Zn(s) + Cu2+(aq) → Cu(s) + Zn2+(aq)Given the following standard electrode potentials: E°(Cu2+(aq) + 2e- → Cu(s)) = 0.34 V E°(Zn2+(aq) + 2e- → Zn(s)) = -0.76 V Assume standard conditions (25°C and 1 atm pressure) and that the concentrations of the copper and zinc ions are both 1 mol/L.

answered 2 days ago in ElectroChemistry

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How many different structural isomers are possible for the molecular formula C4H10O?

answered Jan 21 in Organic Chemistry

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What is the role of the therapeutic relationship?

answered Jan 20 in Psychology

1 answer 21 views

Where did Ivan Pavlov conduct his classical conditioning experiments?

answered Jan 20 in Psychology

1 answer 19 views

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answered Jan 16 in Psychology

1 answer 20 views

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asked Jan 16 in Psychology

1 answer 7 views

When evaluating the originality of a theory, what should be considered?

answered Jan 16 in Psychology

1 answer 21 views

When did Solomon Asch conduct his conformity experiments?

asked Jan 15 in Psychology

1 answer 7 views

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answered Jan 15 in Psychology

1 answer 34 views

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answered Jan 15 in Psychology

1 answer 5 views

What is external validity?

answered Jan 14 in Psychology

1 answer 54 views

What is the recency effect?

answered Jan 13 in Psychology

1 answer 25 views

What is the cutting and burning trees to clear land for farming called?

answered Jan 6 in Science

1 answer 37 views

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answered Jan 6 in Science

1 answer 24 views

What causes earthquakes at mid-ocean ridges to be small and shallow?

answered Jan 6 in Science

1 answer 24 views

The genes that code for the positive cell cycle regulators are called what?

asked Jan 2 in Science

1 answer 29 views

The anterior half of the foot is formed by the five what type of bones?

asked Dec 31, 2024 in Science

1 answer 41 views

Down syndrome is caused by having three copies of what, a condition known as trisomy?

asked Dec 30, 2024 in Science

1 answer 20 views

Alternative current is produced when a magnet or coil does what?

answered Dec 30, 2024 in Science

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